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1. WO2002084607 - ELECTRONIC VOTING MACHINE (EVM)

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

This Invention relates to an Electronic Voting Machine (EVM)

PREAMBLE
The prior art is known as manual ballot paper voting method in which every voter is provided with a ballot paper containing serial number, names of the contesting candidates, their election symbol and space to record votes. The recording of vote is done by putting 'JC mark using rubber stamp in the space provided against the candidate in the ballot paper. After recording vote, the voters deposit the ballot paper in a sealed metallic box (Ballot box). On completion of voting, the ballot papers are taken to the counting centers. The seals of ballot box is opened in the presence of candidates/agents and the votes are counted manually by identifying 'X' stamp mark against the candidate. The candidate who secured highest number of votes is declared winner as per the constitution of India.

The shortcomings of the prior art (manual ballot paper voting method) are
1. Involves printing of huge volume of ballot paper.
2. Storage and distribution of ballot paper requires large manpower and security.
3. Accounting and issue of ballot paper is a tedious work and error prone.
4. Manual counting of votes requires large manpower, time and prone to human error.

5. Re-counting is time consuming and costly.
6. Segregation of invalid votes is cumbersome and leads to disputes /fights, among candidates.

7. Manual voting is prone to mal - practices, booth capturing - not tamper proof.

Due to the ever increasing population and f equency of elections, there is a definite need to bring out improvement over manual ballot paper voting method, which is
1. Fool proof, trouble free and cost effective.
2. To conduct election, paper less and count the votes automatically, so that the result can be declared immediately.
3. To eliminate the invalid votes so that the dispute of segregation of invalid votes eliminated.
4. Reduce the overall election expenditure, to the government (The election expenditure is increasing due to the frequent elections).
5. Reduce drastically the volume of Ballot paper printing from the current requirement of more then 70 million papers for manual voting for one general election (Papers less system)

The Electronic Voting Machine (EVM) of the present invention is provided with all the above needed improvements over the manual ballot paper voting method which are explained in the succeeding paragraphs.
Summary of the invention.

The present invention relates to an Electronic Voting Machine (EVM) consisting of

Control Unit (CU) and Ballot Unit (BU) for conduct of elections in place of conventional manual ballot paper voting method. The invention totally replaces the existing manual method by the use of apparatus constructed in accordance to the invention and operational requirements as per the constitution of India for fool proof, error free and cost saving way to conduct elections for electing members of state assembly, parliament and other municipal bodies based on majority voting scheme. The apparatus of the invention is convenient, simple to operate and portable. Another important feature of this machine is the føcϊa construction of the control unit and ballot unit, which is as per the constitutional requirement of India. Use of this machine eliminates invalid voters, cumbersome procedure and disputes in segregation of invalid votes as in manual ballot voting scheme. By the use of EVM, the labour can be minimized at poling centers as well as counting centers. The feature of the machine are illustrated below.

The Electronic voting machine of the present invention consists of two units, i.e. a balloting unit which the voter operates to exercise his/her franchise and a control unit which controls the polling process. It is operated by the Presiding Officer or the First Polling Officer.

The Control Unit (CU) constructed in accordance with a invention is built around a Micro - Controller [One time Programmable (OTP)]. The control unit is divided into four sections, i.e. a. display section, b. candidate set section, c. result section and d. ballot section. The said sections, are provided with seven control buttons namely cand.set, ballot, close, result I, result TJ, total and clear buttons, Light emitting diode (LED) indicates ON and BUSY condition of the machme. Six digits of seven segment LED is provided for the display of result and error messages. Operation of cand.set switch sets the number of contesting candidate in control unit. Ballot switch operation energizes the ballot unit, receives and records one vote in control unit. Close button operation ends the voting process, The machine records the total number of votes polled and votes against each contesting candidate duiing the polling. On the operation of Result switch, the vote recorded against every contesting candidate is displayed sequentially. Clear operation erases all previous voting data stored in the machine. Print of recorded voting data is obtained through a printer interface unit.

The Ballot Unit (BU) constructed in accordance with the invention has sixteen (16) push button voting switches and indicator lamps. The voting buttons are provided in a recessed oblong cutout in the cover so that the buttons are deliberately pressed by the voters for recording of votes and not by accidental pressing. The top cover has a transparent cover for inserting ballot paper to display the names of contesting candidates, their serial number and election symbol. This cover can be sealed inside the panel by thread seal to protect the ballot paper against any tampering. Green LED lamp is provided for indicating the energized condition of the machine to the Voter. Five meter flat cable provides interconnection to the control unit to receive the signal. Slide Switch is used to indicate the ballot unit number, which is set depending on the number of contesting candidates. The rear compartment receives the interconnecting cable of the cascading ballot unit when the machine is used for more than sixteen contesting candidates.

The machine is constructed using injection moulded plastic parts, which provides consistent quality, high volume output for mass production. Fastnerless assembly of plastic components used in the construction of machine to achieve consistent quality and cost effective product. The voting machine designed with injection moulded carrying cases for movement/transportation to any location for usage. The machine constructed to operate with 7.5V battery power source. It can be deployed in places where no electrical power is available. Machine construction with multilevel interlocking panels/section makes it fool proof, easy to use by common man.

Other features and advantages of the machine will be apparent from the following description, the accompanying drawings and the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS:
Fig.1 shows the perspective view of control unit to control the polling process, which is constructed in accordance with the invention.
Fig.2 is a fragmentary perspective view showing hinging arrangement of Door I & Door π to the Base of the control unit.
Fig.3 is a fragmentary perspective view of showing the rear door of the control unit. Fig 4 is a fragmentary- perspective view of the control unit base showing the assembly of Printed Circuit Board (PCB).

Fig 5 is a perspective view of the control unit in fully assembled conditions showing four sections, of the control unit namely A) Display section B) candidate section, C) Result section D). Ballot section.
Fig 6 is an exploded view of control unit showing parts constructed in accordance with the invention.
Fig 7 shows view of switch knob and closing knob of Ballot Unit constructed in accordance with the invention.
Fig 8 is a fragmentary perspective view illustrating the arrangements of hinge, flap right, cover LED red.
Fig.9 is a perspective view of Ballot unit, which is constructed in accordance with the invention.
Fig.10 is a perspective view of internal construction of ballot unit.
Fig.11 is a fragmentary perspective view iUustrating door connector box with cable clamp, locking pin with flaps and rubber stand.
Fig.12 is an exploded view of balloting unit constructed in accordance with the invention.
Fig.13. is a diagram of Auxiliary Control Unit (ACU) constructed in accordance with the invention.
Fig.14 is a schematic block diagram of Control Unit constructed in accordance with the invention.

Fig.15 is a schematic block diagram of Ballot Unit constructed in accordance with the invention.
Fig.16 is the connectivity scheme of EVM for single poll mode.
Fig.17 is the connectivity scheme of EVM for dual poll mode.
Fig.18 is the state transition diagram of Electronic Voting Machine constructed in
accordance with the invention.

DESCRffTlON OF THE PREFERRED EMBODIMENT:
Referring the drawing of the Control Unit illustrated in Fig.l includes an aesthetically designed plastic molded base 2 which enclosed Printed Circuit Board 35 (PCB) shown in Fig.4 and cover 1 consists of four sections Display Section, Candidate Section, Result Section and Ballot Section as shown in fig.5.

a) Display Section consists of two lamps ON, Busy, and two display panels, one of 2 digits and other of 4 digits. (Fig.5)
b) The Candidate Section (fig.5) has a cover, which opens from, left to right. On opening its cover by pressing the latch on the left-hand side, two compartments are seen. The left compartment is for the battery 34 rated 7.5V, 2Ah. In the right compartment, a CandSet button is located. The Candidate Set Section is closed and sealed by Door IV as shown in (fig.1).
c) The cover of the Result Section has an elliptical aperture on the left hand side through which the close button is seen. The left portion of the Result Section houses a black close button. The right portion contains an inner compartment with its own door. The door of the inner compartment has two elliptical apertures through which buttons marked Result I and Result II is seen. The inner door can be opened by inserting the thumb and a finger through the two apertures above the Result I and Result II 'buttons' and then pressing the inner latches simultaneously slightly inwards. On opening the door of the inner compartment by inserting forefinger and thumb through the holes which are marked Result I and Result II and pressing the latches and pulling the cover up, there are two frames around the two apertures for fixing green paper seals. The inner compartment has three sub-sections with two yellow buttons marked Result I and

Result II and a white Clear button,
d) In the ballot section, there are two buttons - a Grey Total button 32 (fig.6) and a large blue ballot button as indicated in fig.5.
The cover 1 (fig.5) defines four sections namely
a. Display section, b. Candidate section, c. Result section and d. Ballot Section.

The base 2 (fig.6) has provision to mount printed circuit board 35 (PCB) using self tapping screws 37. It has also a compartment with rear door 3 (fig.6). This rear door is hinged in the bottom and opens swinging downwards, when the latch in the middle is pressed downwards. This has a provision for thread sealing. The rear door when opened will reveal a socket on the left hand side for plugging the interconnecting cable from the ballot unit and a toggle switch 36 in the middle for switching the EVM ON or OFF (Fig.3).

The door 14 (fig.5) is a protection cover for result section. Door I when opened reveal knob (Result I) 29; nob (Result 11)30; and knob (clear) 31 (fig.6) & has provision for thread sealing. The insert 16 (Fig.5) is used for the thread sealing of the result section.

Two elliptical cutouts are provided in the door 4 to access Result I, Result U and Clear -buttons.

The door II referred by reference numeral 5 (fig.5) is the top cover of the result section having an elliptical cutout for the knob (close) 28 (fig.6). The elliptical cutout is sealed by plate - paper seal 26 (fig.5) and green paper seal. The door DI indicated by reference numeral 6 (fig.5) is a protection cover for candidate set section with provision for thread sealing. The door III when opened will reveal battery compartment and candidate compartment. The candidate set compartment is accessed by opening door IV (cand.set) 7 (fig.5) by removing thread sealing. The knob (cand.set) 27(fig.6) can then be operated.

The hinge 8 (fig.4) shows the hinging action of the door π 5 & door HI 6 with the cover. The plexy glass display 12 (fig.6) is a red acrylic sheet to view the digits of 7-segment display mounted on the Printed Circuit Board (PCB). There are 2 digits for serial number and 4 digits for number of votes. There are seven knob bases 11 (fig.6) used for the seven different knobs such as knob 27 (can set). Knob 28 (close), knob 29 (result J), knob 30 (result H), knob 31 (clear), knob 32 (total) and knob 13 (Ballot) (Fig.6). The knob (ballot) 13 (fig.6) is a dark blue colour plastic button to register vote.Cover 38 is provided for the green LED.

The bush short 14 (fig.6) and bush long 15 (fig.6) are assembled after mounting the Printed Circuit Board (PCB) on to the base of the control unit. The pin (door IV) 22 and hinge (door IV) 23 (Fig.5) are required to assemble door IV onto the cover of the control unit. At first hinge and door IV are assembled by using pin (door IV) and then the door IV assembly is fixed to the cover by heat sealing as shown in fig. 6.

The washer 24 (fig.6) are used along with five knobs namely knob (cand.set). Knob (close), knob (result I), knob (result II) and knob (clear). It gives cushioning effect to the knobs. It is made out of foam. The washer 25 (fig.6) are used to fix display Printed Circuit Board (PCB) rigidly on to the base of the control unit. After mounting the display board on the base, washer is placed and then fixed by screws. Rubber cap 33 (Fig.6) is fixed to cover screw head.

Referring to the drawings, the ballot unit illustrated in fig. 10 includes a rectangular plastic moulded base 39, which encloses PCB cover & PCB (not shown). It also encloses door connector box 64 (fig.11) for interconnecting cable. The base has got a rubber stand 40 as shown in fig.7. The cover 42 (fig.10) defines cover ballot sheet 62 for inserting the ballot paper of the sixteen contestants, cover (ready Light Emitting Diode (LED) 44 (fig.10) & Light Emitting Diode (LED) cover 45 (fig.10). It protects ballot paper. The cover 42 & base 39 of the ballot unit are assembled with two numbers of plastic hinges 46 (fig.8) and the cover ballot sheet is assembled with locking pins 47 and 48 (fig. 11). The hinges are assembled to the base and cover by heat sealing process.

The Printed Circuit Board (PCB) cover 49 (fig.12) is a rectangular plastic moulded part, dark Grey in colour having provision for sixteen closing knobs 50 (fig.7), sixteen switch knobs 51 (fig. 7). This protects Printed Circuit Board (PCB) 63 (Fig.12) from tampering. It is fixed to the base by screws. The closing knob 50 (fig. 7) used for blocking the switch knob 51. In order to access the switch knob 51 one has to open the closing knob. This is used during polling depending on the number of contestants in fray.

Locking pin 52 (fig. 12) used for closing & opening the cover and base of the ballot unit. Flap right 53 (fig.11) and flap left 54 (fig. 11) are used for covering locking pin 52 after latching the cover to base. Bracket 55 (fig. 10) used for clamping the interconnecting cable at two places after crimping the 25 core flat cable to the 25-pin dip header, which is soldered to the Printed Circuit Board (PCB). Support LED 56 (fig. 12) is a plastic moulded part in which ready LED assembly is mounted in order to avoid damage during operation and transportation of the Ballot Unit.
Rubber Stand 40 (Fig. 7) supports the ballot unit while placing on table during operation. It is a plastic moulded part having provision for fixing serrated rubber stand 41 (fig.7). Rubber foot 57 (Fig 11) prevents sliding of the ballot unit from the table while the unit is in operation. Clamp cable 58 (fig. 11) clamps the interconnecting cable of the cascading Ballot unit (incase of more than sixteen contesting candidates), 25 contact D-sub connector) inside the connector box compartment of the ballot unit.

Interconnecting cable 59 (Fig.9) is a sheathed 25 core flat cable, one end of which is permanently attached to the Ballot unit. The other end is with 25 contact D-sub connector with hood for connecting it to the control unit. Ready lamp 60 (Fig.9) is on the top left side of the Ballot unit. This lamp glow when the presiding officer presses the 'Ballot button' on the control unit enable the voter to record his vote. It goes off when the voter has recorded his vote.

Slide switch 61 window (Fig 10) is on the top right side of the Ballot unit. The slide switch inside the Ballot unit is used to set the Ballot Unit for 1-16, 17-32, 33-48 or 48-64 positions in cascading configurations. Sixteen candidates button 51 (Fig. 7) provide convenient access for the voter to record his her vote by pressing the candidate's button against the name and symbol of the candidate of his / her choice. When the button is pressed the lamp on the left side of that button glows and voters choice is recorded.

Provision for insertion of ballot paper 43 (fig. 12) is provided on the top cover of ballot unit. The ballot paper contains serial number, names and symbols of the contesting candidates. A transparent polycarbonate sheet 62 covers the ballot sheet 43 (Fig.12) to protect the said ballot paper.

Referring to the diagram 13, Auxiliary control unit is constructed by means of cover 65, base 66, Printed Circuit Board (PCB) 67, inter-connecting cable 68 to connect to the main control unit. The PCB is held by self-tapping screws 69, cover and base is held by screws 70, ballot knob 71 is inserted into the packet in the cover and knob base 72 is fitted from inside. Partition box 73 is used to control light dispersion on indicator. Rear door 74 provides access to connect Ballot Unit and Cable Clamp 75 is used to Clamp the Cable.

Referring to the diagram 14 which shows the block level details of hardware construction of control unit built around a Micro-controller (One Time Programmable). The nonvolatile data memory is interfaced serially to the Micro controller. All the required control signals are generated through the shift register. In order to have an orderly power up and power down sequence, power monitoring circuit (DS1231) is used. To protect EEPROMs during power up and power down, the low voltage detector in the power monitor is used. Additionally, the reset signal also inhibits the write operation under low voltage condition. A seven-segment drive-decoder is used to generate display data. In order to reduce the hardware complexity, these displays are driven in a multiplexed mode using an 8-digit, high current display driver.

Minimum numbers of components have been used to construct the machine to keep cost and power consumption at optimum. Industrial grade and surface mount technology have been used to achieve high reliability. The total hardware has been populated in only three PCBs with minimum number of interconnections to provide high field reliability and serviceability. Signal integrity is established between Micro-controller, Data memory and ballot unit so that these three will work in unified manner. Without connecting the ballot unit the voting is not possible.

The battery is packaged in moulded case with polarized plug, which is unique and fool proof that different battery can not be used. Low battery indication is provided in the machine to facilitate replacement of battery at any stage of polling process and the process can be continued. The ballot units are powered from the control unit, which gives a unique nature of signal integrity (Scanning process) for the machine. High current drivers are used to drive the ballot unit to cater to the twenty-meter distance between the polling officer and voting compartment. The slide switch setting in ballot unit makes it unique and cannot be interchanged during poll.

Micro-controller (One Time Programmable) is used to store the firmware, which cannot be changed or modified once fused. The non-volatile data memory (EEPROM) is tightly coupled to the micro-controller through unique protocol to store the data during the voting process. Every time the micro-controller checks the check sum of the data memory (EEPROM) to confirm data integrity , otherwise the machine displays Er, which eliminates the tampering the micro-controller or EEPROM by replacement of external components.

The data memory is written in encrypted form and has been split into two banks and the ballot counting is stored in both banks. 2 Nos. are used for redundancy and hence voting data is stored at 4 locations. At every instance of a change in the data memory, the data stored in 4 locations are verified to check the correctness of the operation. The data can be decrypted only by the firmware in the micro-controller. Hence it is not possible to corrupt the firmware or data by any known means.

To have effective redundancy, two independent non-volatile memory devices (EEPROM) are used. Effectively four banks are used to store data and at every operation all the four banks are checked and at-least two banks should contain the correct data as per the firmware's expectations. If data are not found in at-least any of the two banks then a fatal error is declared and the whole unit is unusable at this state.

The stored data can be read and printed through a printer interface module at any number of times in the life of the machine unless deliberately erased by operating the clear button. This emulates the manual ballot paper method as per the constitutional requirements.
Figure 15 shows switch and LED matrix interfaced to Control unit.
Figure 16 shows the connectivity details of electronic voting machine for single poll mode.
Figure 17 shows the connectivity details of electronic voting machine for dual poll mode where in the EVM is deployed for parliament and assembly elections simultaneously.

Figure 18 shows the state transition diagram of voting process. It also gives the different state of the machine and change over from one state to other. The state transition has been done to prevent mal-practices and to strictly follow the procedure of voting as per the constitutional requirements.

OPERATION: Before the Electronic Voting Machine is sent to the Polling Stations, the Ballot Unit has to be prepared by the Officer-in-charge as given below:

a) Inserting the Ballot paper,

b) Masking the Candidate's buttons, which are not required to be used,

c) Setting the Slide Switch at the appropriate position, i.e. 1,2,3, or 4 as the case may be according to the number of such units which are to be used depending upon the number of candidates and the sequence in which, they are to be used and

d) Sealing the unit.

After taking out the Ballot Unit from the carrying case, the top cover of the unit may be opened carefully by pressing simultaneously, towards the right, the latches at the top and bottom on the right edge of the unit (fig.11), and swinging the cover up. (fig.13).

OPENING OF BALLOT PAPER SCREEN

Open the Ballot Paper Screen, which is a transparent acryhc sheet, hinged to the top cover on the extreme left side. The release latches of the screen are inside the top cover (Fig.9). By pressing the latches simultaneously, first slightly towards right and then pushing them downwards, the Ballot Paper Screen will become free for opening on the upper side of the said top cover. While opening the screen care should be taken to ensure that it is not damaged.

FIXING OF BALLOT PAPER

Place the Ballot Paper in the space provided for the purpose on the upper side of the top cover. Align the Ballot paper properly so that each candidate's name and his symbol are in line with the corresponding Candidate's lamp and button. After ensuring this alignment, close and press fit the Ballot Paper Screen to secure the Ballot Paper firmly underneath that screen.

After the Ballot Paper has been firmly fixed and the Ballot Paper Screen has been pressed fit on the upper side of the Top Cover, the screen is to be sealed on the inner side of the Top Cover. This is to be done by passing the thread through the two holes on the screen specially provided for the purpose and by putting the thread seal on the prescribed address tag showing the particulars of the election with the seal of the Returning Officer.

MASKING OF CANDD3ATES' BUTTONS

If the number of Candidates on the ballot paper is less than 16, the white masking tabs should be moved onto the Candidates' buttons not required to be used.

SETTTNG OF SLH)E SWITCH
Inside the Ballot Unit on the top right side, there is a Slide Switch, which has four positions 1,2,3 and 4. If only one Ballot Unit is to be used, set this Switch to the position marked '1'. If two Ballot Units are to be used, set this Switch to the position marked '1'
I
in the Ballot Unit in which the names of the Candidates at SI. Nos. 1 to 16 appear, and in the second Ballot Unit set this Switch to the position marked '2'. If three Ballot Units are to be used, the Slide Switch will be set to the position marked 1* in the first Ballot Unit in which the names of candidates at SI. Nos. 1 to 16 appear, to the position marked '2' in the second Ballot Unit in which the names of contesting candidates at Sl.Nos.17 to 32 appear, and to the position marked '3' in the third Ballot Unit. Likewise, if the 4th Ballot Unit is also to be used if the number of contesting candidates exceeds 48, then the Slide Switch will be sent to the position marked '4' in the last Ballot Unit.
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4



Position 1 Position 2 Position 3 Position 4

SEALING OF BALLOT UNIT

Close the Ballot Unit by bringing the top cover back to its original position. Pass two threads, one through the three holes at the top and the other through the three holes at the bottom provided for the purpose and seal each thread with Returning Officer's seal.

CONTROL UNIT
The Control Unit is to be prepared by the Returning Officer by-a) Installing the Power Pack.
b) Setting the number of contesting candidates and
c) Sealing the Candidate Set Section
POWER PACK INSTALLATION

Open the cover of the Candidate Set Section by pressing slightly inward the latch provided on the left side. Install the Power Pack specially supplied by mating the socket of the Power Pack to the plug. Ensure that Power Pack is pressed tight.

SETTING THE NUMBER OF CONTESTING CANDIDATES

After connecting the Power Pack, open the compartment at the bottom of the Control Unit as explained above, and proceed as follows for setting the Number of contesting candidates: a) Connect the Ballot Unit to the Control Unit by plugging the connector of the Interconnecting Cable in the socket in that compartment. As the connector and the plug are multi-pin connectors, it will need some practice to plug them properly. The EVM will work only when this connection is made properly.

b) After plugging the connector properly, push the 'Power' switch to 'ON' position. It will give a beep sound and the "ON' lamp on the Display Section of the Control Unit will glow GREEN.

c) After the 'ON' lamp glows GREEN, press the 'Cand Set' button in the Candidate Set Section. There upon the 2 digit Display Panel in the Display Section will now flash the letters 'Cd'.
d) When the letters 'Cd' start flashing on the Display Panels on the Control Unit, press the Candidate's button against the last contesting candidate in Ballot Unit. For example, if there are 9 contesting candidates, press the 9th candidate's button. On that button being pressed, the Display Panels will stop flashing the letters 'Cd'. Instead, the full panel will start displaying the following information sequentially -

This way the machine is set for 9 contesting candidates.

e) Switch OFF the EVM by pushing the "Power" switch downwards to OFF position and disconnect the Interconnecting cable from the control unit. For this purpose, the spring type clips on both sides of the connector hood should be pressed inward simultaneously and then the connector pulled out. Then close the door of the compartment at the bottom of the Control Unit.

SEALING THE CANDIDATE SET SECTION

Close the flap which houses the Cand Set button and pass a thread through the two holes provided on the left side and seal with the seal of the Returning Officer. Then close the candidate set section and do the thread seal. While sealing take care that direct flame does not come in contact with the Control Unit and molten wax does not fall on any part of the Control Unit.

Put back the Ballot Unit and the Control Unit in their respective carrying cases. They are ready for transportation to the Polling Station.

On the day of Election, the presiding Office shall make the following preparations:
The Ballot Unit sill be checked to see if the Ballot Paper is properly fixed in ballot display panel under the ballot paper screen and that the two seals are intact.

In the Control Unit, the presiding officer will check if the Candidate Set Section is intact and then connect the Ballot Unit to the Control Unit by plugging the connector of the interconnecting cable, put the 'Power' switch to 'ON' position and then close the bottom compartment. Then open the 'Result' Section in the Control Unit and press the 'Clear' button to set all counts to 'ZERO'. On completion of the clearing process, the display panel will start displaying that all counts are set to 'ZERO' sequentially (i.e. one by one, the display panel will show the total number of candidates, total votes polled and number of votes for each candidate). If need be the presiding officer will conduct a "MOCK POLL" in the presence of some polling agents & others.

During the actual poll, the 'Result Section' should be sealed, using special security paper serially numbered. This paper seal has to be firmly fixed in the inner cover frame of the Result Section. Here is also a provision for making a thread seal on the left side of the inner door. After this, the outer cover of the Result Section has to be pressed for closing this section.

PROCEDURE DURING POLL

The Poll shall commence at the hour fixed for such commencement. After all procedural requirements relating to identification of voter, application of indelible ink on his/her forefinger and obtaining his/her signature/thumb impression in the Register of Voters have been completed with regard to the first voter, the voter concerned has to be allowed for recording his vote. For that purpose, press the 'Ballot' button on Ballot Section of the Control Unit which would make the Ballot Unit ready for recording of the vote by that voter as has been explained herein above. Repeat that procedure every time the next voter is to be allowed to record his vote. It should be ensured that only one voter goes inside the voting compartment to vote. Special care should be taken to ensure that a voter goes in that compartment in the same order in which his Name is entered in the 'Register of Voters.' Also ensure that the Ballot button is pressed only when the earlier voter has come out of the voting compartment. At any time, if the total number of votes polled has to be ascertained, 'Total' button should be pressed. The Display panel will then show the total number of votes polled by that time. Please remember that the 'Total' button is to be pressed only when the 'Busy' lamp is OFF.

After the close of the poll, the close button will be pressed. When this button is pressed the display panel will show the total number of candidates and the total number of votes polled during the day.

On the day of counting, after making the necessary checks, the Result button I in the Control Unit pressed to start the Result computation process. On completion of the result computation process, the total number of candidates, the total number of votes and the total number of votes for each candidate will be displayed in the 'Display Panel' sequentially.

While the form of apparatus herein described constitutes a preferred embodiment of the invention, it is to be understood that the invention is not limited to this precise form of apparatus, and that changes may be made therein without departing from the scope and sprit of the invention as defined in the appended claims.