Ahead of assembly polls, a look at how elections are conducted: EVMs, VVPAT, and counting process explained

# EVMs & VVPATs: Voting Process Explained

By Electoral Desk, National Observer
April 18, 2026

As India braces for a crucial series of state assembly elections in the spring of 2026, the Election Commission of India (ECI) has activated its vast logistical machinery to ensure free, fair, and transparent polls. At the heart of this colossal democratic exercise lies the Electronic Voting Machine (EVM) and its companion, the Voter Verifiable Paper Audit Trail (VVPAT). But how exactly does this electronic ecosystem function, and what happens between a voter pressing a button and the final declaration of results? This comprehensive guide breaks down the mechanics, rigorous security protocols, and counting procedures that safeguard the electoral process in the world’s largest democracy.

## The Anatomy of an EVM: A Three-Part System

Contrary to popular belief, an Electronic Voting Machine is not a single, monolithic device. As noted in recent reports ahead of the polls, an EVM has three parts working together, including the Ballot Unit where voters press a button next to their chosen candidate to cast their vote. [Source: Hindustan Times | Additional: Election Commission of India Public Records].

The system relies on a seamless integration of three distinct components:

1. **The Ballot Unit (BU):** This is the interface the voter interacts with inside the polling booth. It features a list of candidates alongside their respective party symbols and a blue button next to each name. The final button on the BU is always reserved for NOTA (None of the Above).
2. **The Control Unit (CU):** Often referred to as the “brain” of the EVM, the Control Unit remains on the desk of the Presiding Officer outside the voting compartment. The BU cannot register a vote until the Presiding Officer presses the “Ballot” button on the CU, effectively enabling the BU for a single vote. This prevents multiple voting by a single individual.
3. **The VVPAT:** The Voter Verifiable Paper Audit Trail acts as an independent verification system, bridging the gap between electronic efficiency and physical evidence.

**Key Fact:** The latest iteration of these machines, known as the **M3 EVMs**, are designed with mutual authentication capabilities. This means the CU, BU, and VVPAT communicate using encrypted protocols, ensuring that no unauthorized or modified device can be connected to the network. If a fake component is attached, the entire system enters a “factory halt” mode and shuts down.

## The Role of VVPAT in Ensuring Transparency

Introduced to enhance transparency and resolve disputes regarding the reliability of EVMs, the VVPAT system has become an indispensable part of Indian elections.

When a voter presses the blue button on the Ballot Unit, a corresponding red light flashes. Simultaneously, the VVPAT machine, situated right next to the BU, prints a paper slip containing the serial number, name, and symbol of the chosen candidate.

This printed slip remains visible to the voter through a transparent, illuminated glass window for exactly seven seconds. Following this brief display, the slip is automatically cut and drops down into a securely sealed ballot box attached to the base of the VVPAT. This physical paper trail serves a critical purpose: it provides tangible proof that the electronic vote was recorded exactly as the voter intended. A loud, long beep from the Control Unit then confirms that the entire voting sequence is complete.

## Security Protocols: How the ECI Protects the Vote

The sanctity of the electoral process relies heavily on the administrative and technical safeguards surrounding the EVMs. The Election Commission implements a multi-layered security protocol long before polling day arrives.

### First-Level Checking (FLC)
Months before an election, EVMs undergo a rigorous First-Level Checking process. Engineers from the manufacturers—Bharat Electronics Limited (BEL) and Electronics Corporation of India Limited (ECIL)—clean, inspect, and test every machine in the presence of representatives from recognized political parties. Any machine showing even the slightest anomaly is immediately discarded from the election pool.

### The Double Randomization Process
To prevent targeted tampering, EVMs are subjected to a two-stage randomization process via dedicated software.
* **Stage One:** Machines are randomly allocated to different assembly constituencies within a district. At this point, no one knows which machine will go to which specific polling station.
* **Stage Two:** Closer to polling day, machines are randomly assigned to specific polling booths. This is done under the strict observation of candidates or their authorized election agents.

### Mock Polls
On the morning of the election, exactly 90 minutes before official voting begins, a “Mock Poll” is conducted. In the presence of polling agents representing various candidates, at least 50 mock votes are cast. The electronic tally on the Control Unit is then verified against the printed VVPAT slips. Once the mock poll is successfully matched, the machine is cleared, sealed with specialized tamper-evident paper seals signed by the polling agents, and readied for the actual election.

## The Journey to the Strong Room

Once polling concludes, the Presiding Officer presses the “Close” button on the Control Unit. This action cryptographically locks the EVM, making it impossible to register any further votes. The total number of votes cast is noted and shared with the polling agents via Form 17C.

The EVMs and VVPATs are then sealed in highly secure carrying cases and transported under armed escort to a designated “Strong Room.” These strong rooms are guarded 24/7 by a three-tier security cordon. The innermost perimeter is secured by the Central Armed Police Forces (CAPF), the middle by state armed police, and the outer ring by district police.

Furthermore, political candidates are permitted to station their representatives outside the strong room, and a continuous CCTV feed of the strong room doors is displayed on screens for real-time monitoring. [Source: Election Commission of India Procedural Guidelines].

## The Counting Process Decoded

Counting day is a highly structured event, governed by strict ECI guidelines to prevent any discrepancies.

1. **Unsealing the Strong Room:** The strong room is opened in the presence of the Returning Officer (RO), ECI Observers, and candidates or their counting agents. The logbook and video recordings are thoroughly cross-checked.
2. **Postal Ballots First:** By law, the counting process begins at 8:00 AM with the counting of electronically transmitted postal ballots (ETPBS) and traditional postal ballots submitted by service voters and personnel on election duty.
3. **EVM Counting:** Exactly 30 minutes after postal ballots are opened, EVM counting commences. Only the Control Units are brought to the counting tables. The Ballot Units and VVPATs remain securely stored unless a specific dispute arises.
4. **Verifying the Seals:** Before any votes are displayed, the counting agents inspect the outer paper seals and the unique serial number of the CU to ensure it matches the data provided on polling day.
5. **Pressing the ‘Result’ Button:** The counting supervisor pierces the paper seal covering the “Result” button on the CU and presses it. The digital display then cycles through the total number of votes cast, followed by the exact number of votes secured by each candidate in sequential order.
6. **VVPAT Matching:** Following a landmark Supreme Court mandate, the final stage of the counting process involves the mandatory verification of VVPAT slips. The slips from five randomly selected polling stations per assembly constituency are taken out and hand-counted to ensure they perfectly match the electronic tally on the corresponding Control Units.

## Expert Perspectives on Electoral Integrity

As technology evolves, so do the discussions surrounding the best practices for electoral administration.

“The integration of VVPATs and the transition to M3 generation EVMs represent a critical evolution in India’s democratic infrastructure,” says Dr. Meera Sanyal, an independent researcher specializing in South Asian electoral mechanics. “While the machines operate on basic standalone architecture—meaning they have no wireless communication capabilities—the true strength of the system lies in the administrative protocols. The randomization, the mock polls, and the transparency afforded to candidate agents form an interlocking web of accountability.”

This administrative rigor is crucial for maintaining public trust. By ensuring that representatives from all political factions are actively involved in the sealing, transporting, and unsealing of the machines, the ECI minimizes the window for institutional bias.

## Conclusion: Safeguarding Democracy’s Framework

The upcoming 2026 assembly polls will once again test the logistical might of the Election Commission of India. Managing millions of voters across thousands of polling stations requires more than just functional technology; it demands a flawlessly executed administrative ballet.

The EVM and VVPAT system, despite occasional public scrutiny, remains globally recognized for its ability to deliver rapid, clear, and auditable election results in a demographically complex nation. By understanding the rigorous checks and balances—from the first-level checking of the Ballot Unit to the final matching of the VVPAT slips—voters can better appreciate the intricate mechanisms designed to ensure that every single vote is accurately captured, securely stored, and fairly counted.