EVM issue: Machines can't be tampered with, says former Advisor to Election Commission

Former Advisor to Election Commission K. J. Rao said that the Electronic Voting Machines (EVM's) are having so many security features through which it can never be tampered with. The former Advisor said that EVM's are controlled by a microprocessor with 'burn-in' software, which cannot be altered or replaced and integrity of the electoral process is preserved. The election results in Uttar Pradesh and Punjab have prompted some political figures to question the sanctity and reliability of the electronic voting machines (EVMs).