DMK moves Madras High Court questioning the design of third generation EVMs

Generational upgrade of EVMsThe Election Commission of India procures electronic voting machines from two PSU manufacturers - Bharat Electronic Ltd., Bengaluru and Electronics Corporation of India Ltd., Hyderabad. M1 - This is the first generation EVM, which was in use till 2014. These were manufactured till 2006 and had an electronic life of 15 years. M2 - This model was produced between 2006 and 2012. These models incorporated dynamic coding of key codes thereby enabling transfer of the key – press message from Ballot Unit (BUs) to Control Unit (CUs), in an encrypted form as an additional security feature. It also contains Real time setting of each key press so that sequencing of key presses including so called malicious sequenced key presses can be detected and wrapped.M3 - The third generation EVMs are being produced from 2013. They have additional features like Tamper Detection and Self Diagnostics. The tamper detection feature makes an EVM inoperative the moment anyone tries to open the machine. The Self diagnostic feature checks the EVM fully every time it is switched on. Any change in its hardware or software will be detected. Source: Election Commission of India

The Election Commission of India procures electronic voting machines from two PSU manufacturers - Bharat Electronic Ltd., Bengaluru and Electronics Corporation of India Ltd., Hyderabad. 

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