"We are keeping watch on whatever is happening," Additional Chief Electoral Officer Dibyendu Sarkar said on the reports of a violent incident in the city.
Besides the 1950 helpline of the election commission, each of the districts have been allotted a helpline number where voters can lodge complaints related to polling.
Complaints can also be made with the help of mobile app 'Samadhan'.
"An action taken report is sent via SMS within 24 hours of lodging the complaint," Sarkar said.