The repolling started at 7 am and would continue till 6 pm, they said.
The booth in the Barasat constituency is located at the Kadambagachi Saradar Para FP School in the Deganga assembly segment, while the one in Mathurapur is located at the Aaddir Mahal Srichaitanya Bidyapith in the Kakdwip assembly seat, they added.
The decision of repolling was taken on Sunday based on reports of the returning officers, the district election officers and observers concerned, officials said.
Voting in the two constituencies was held on June 1.
