Long queues were seen outside the polling stations, DawnNews reported. A total of 44 candidates are in the fray for the National Assembly seat from Lahore.
The Pakistan Army personnel supervised the polling process.
After her husband's incarceration following the military coup by General Pervez Musharraf in 1999, Kulsoom had led the party though she never contested elections.
For the first time in Pakistan, Biometric Voter Verification Machines are being tested. More than 100 of these machines have been installed at 39 polling stations.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)