The opposition parties in several states are reportedly keeping strict surveillance on the storage rooms where the voting machines are kept in high security, before the counting of votes in the national election. This action comes amid complaints of alleged tampering of EVMs and protests in Uttar Pradesh after videos of alleged movement and tampering of voting machines.

Reportedly, Digvijaya Singh, senior Congress leader, and the party's Bhopal candidate and his wife, visited the voting machine storeroom at the central jail in the city last night.

In Uttar Pradesh, Congress workers were reportedly seen sitting outside the EVM storerooms in Meerut and Raebareli, the stronghold of the Gandhi’s from where Sonia Gandhi is seeking re-election.

22 opposition parties met the Election Commission on Tuesday and flagged the movement of voting machines in five states after multiple videos surfaced. Their demand included wanting the VVPAT (Voter Verified Paper Audit Trail) machines be considered first. Earlier in the day, the Supreme Court had dismissed a request seeking 100 percent matching of paper trail slips with the EVMs during counting and called it nonsense.

Meanwhile, in Chandigarh, Congress workers have been sitting outside storerooms since Monday to ensure there was no movement of voting machines.

Mumbai Congress chief and Mumbai South candidate Milind Deora wrote to the EC chief in Maharashtra on Tuesday. He demanded an increase in the vigilance around the storage rooms. He also asked that if possible, passwords of the CCTV cameras in the strongrooms be shared with the candidates so that they too can monitor the situation.

Also, Congress's Mumbai North West candidate Sanjay Nirupam visited the counting Centre in Goregaon East and monitored the safety and security status there.

Also, Shashi Tharoor, the Congress lawmaker from Thiruvananthapuram who is seeking re-election, is expected to visit a storeroom for voting machines in the city today.

During a meeting of BJP and its allies in Delhi on Tuesday night, Prime Minister Narendra Modi expressed concern over what he termed "needless controversy" by the opposition over electronic voting machines.

Exit polls have indicated that the BJP and its allies will get a comfortable majority.

The results will be declared on May 23rd.