The Election Commission has sought a detailed report from the district poll authorities in Bhind, Madhya Pradesh on media reports that VVPAT was only dispensing slips of the Bhartiya Janata Party (BJP) symbol during a demonstration exercise.
An assembly bypoll is due in Bhind next week and the demonstration was part of the familiarisation exercise.
"We have sought a detailed report from district election officer and would come up with a response in the evening," a Commission spokesperson said.
The voters see voter-verifiable paper audit trail (VVPAT) slip for seven seconds, which would be an acknowledgement receipt for the party they voted for in the election.
VVPAT is a machine which dispenses a slip with the symbol of the party for which a person has voted for. The slip drops in a box but the voter cannot take it home.
According to media reports, the receipt showed the vote going to BJP, irrespective of the button pressed, during the demonstration.
The reports also claimed that the Chief Electoral Officer (CEO), Madhya Pradesh, Saleena Singh was seen telling journalists that the news should not appear in newspapers, else they would be detained at the police station.