Around 2 years back EC called for an EVM hackathon challenge. Nobody, not even parties and people who consistently talk about how BJP wins elections only due to EVM tampering came forward to even try tamper an EVM.
Vote share and voter's demography to maturity of voters have drastically changed compared to 2004. 2002 riots as reason for the defeat of BJP in 2004 election was Hoax by Darbari Journalists and Congress.
Hacking or tampering of the EVMs is impossible as they are rigorously protected by layers of high securities making it nearly impossible to breach. Read the technicalities simply explained here.