EVM Testing: How Electronic Voting Machines Are Tested Before Elections

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Electronic Voting Machines, or EVMs, are the backbone of India’s elections. They ensure fast, accurate, and tamper-proof counting. But before they reach polling booths, they go through several layers of testing. Many people wonder how we can trust these machines. The answer lies in the transparent testing process, which involves engineers, political party representatives, and independent observers. Let’s break this down step by step.

Understanding an EVM

An EVM has two main parts. The Ballot Unit (BU) is where voters press the button to cast their vote, and the Control Unit (CU) is where the votes get recorded. These machines work on batteries and do not connect to the internet, which makes them safe from online hacking.

First Level Checking (FLC)

Months before elections, EVMs are sent to strong rooms in each district. Engineers from the Election Commission, usually from Bharat Electronics Limited (BEL) or Electronics Corporation of India Limited (ECIL), conduct the First Level Checking.

• Every machine is tested for proper functioning
• Buttons on the Ballot Unit are checked one by one
• Control Units are tested to ensure votes are recorded correctly
• Voter Verifiable Paper Audit Trail (VVPAT) machines are also checked to see if they print the right slip

Political party representatives are invited to witness this process to maintain transparency.

Mock Polls

After FLC, mock polls are conducted. This means dummy votes are cast in the machine to check if it records and counts accurately. For example, if 50 votes are given to Candidate A, 30 to Candidate B, and 20 to Candidate C, the final count must show the same.

These mock polls are done in front of party agents, and results are shared with them. Any faulty machine is rejected and kept aside.

Randomization of Machines

To prevent any suspicion that a particular machine is fixed for a candidate, EVMs are randomized twice.

• First randomization decides which machines go to which constituency
• Second randomization decides which polling station in that constituency gets which machine

This is done through computer software in front of political parties, so no one can predict which machine will be used where.

Sealing and Storage

Once machines pass the tests, they are sealed with signatures of election officers and political party agents. They are then stored in strong rooms with CCTV cameras, 24×7 police security, and representatives of political parties watching.

Testing on Polling Day

On the actual voting day, a mock poll is again conducted before polling starts. Around 50 to 100 test votes are cast in the presence of polling agents. Only after everyone is satisfied, the machine is cleared and the real voting begins.

These layers of testing build trust. By involving political parties, engineers, and observers, the Election Commission ensures that EVMs remain free from manipulation. The entire process shows that elections in India are not just about technology but also about transparency and accountability.

FAQs

1. Can EVMs be hacked?
No. EVMs are not connected to the internet or any network. They are standalone machines, which makes hacking impossible.

2. Who manufactures EVMs in India?
They are made only by two public sector companies – Bharat Electronics Limited (BEL) and Electronics Corporation of India Limited (ECIL).

3. What happens if an EVM fails during polling?
If an EVM malfunctions, it is immediately replaced with a standby machine, and polling continues without delay.

4. Why is VVPAT used along with EVMs?
VVPAT provides a paper slip for each vote cast, so voters can verify their choice. It adds an extra layer of transparency.

5. Who all are present during EVM testing?
Engineers, election officers, representatives of political parties, and independent observers are all present to ensure transparency.