The polling ended at 6 pm officially, but those who had already queued up at the polling stations by then were allowed to exercise their franchise.
"The entire polling process went on peacefully and no untoward incident was reported from any part of the constituency in north-west Delhi," Chandra Bhushan Kumar, Chief Electoral Officer, Delhi said.
The polling officials said an EVM and 17 VVPAT equipment malfunctioned and were replaced without any hindrance to voting.
The voting percentage today was much lower than in the 2015 Assembly election in the constituency in which 61.83 per cent voting percentage was registered.
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The officials conjectured that multiple elections taking place in the city in quick succession could be a factor for the low turnout in Bawana, adding that voter turnout was "generally low" in bypolls.
Eight candidates are in the fray for the bypoll. The counting of votes will take place on August 28.
BJP has fielded Ved Prakash who had won from the constituency in the 2015 elections as an AAP candidate. He had resigned from assembly membership and joined the BJP in March this year.
There are a total of 2.94 voters in Bawana, including 1,64,114 males, 1,30,143 females and 25 third gender voters.
Voting was held in 379 polling stations across the constituency.