Democracy was "too precious" to be left to technology, he said, while pointing out that several countries had gone back to paper ballots.
"All right-thinking people, who believe that if certain people do not come back (to power) in 2019, democracy will survive, should make serious efforts to ensure that the election in 2019 are held on ballots," Tiwari said at a debate on EVMs, organised by an NGO.
Senior CPI(M) leader Nilotpal Basu said the demand for going back to paper ballots should be a part of electoral reforms that were needed in the country.
Stating that the purity of the electoral process was fundamental, he said, "There cannot be unanimity on all the issues, but there should be a consensus on certain points."
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Many social and political activists, including those from the JD(S), Rashtriya Janata Dal (RJD) and Aam Aadmi Party (AAP), participated in the debate.
The speakers strongly opposed the use of EVMs in elections as they could be tampered with and demanded going back to the paper ballot system.
"We wrote to the Election Commission, demanding paper ballots and making it clear that we were against EVMs. But the political parties are sleeping over the issue," charged Danish, a JD(S) leader from Karnataka.
RJD leader Naval Kishor Yadav suggested that the political parties should raise a demand for a 100-per cent counting of VVPAT slips in 10 per cent constituencies in every election.