Ajit Pawar's NCP, a constituent of Mahayuti, was winning or leading in 41 of the 59 seats it contested as per the latest figures released by the Election Commission.
With these arrests, the number of those taken into custody rose to 17.
Over two months after 74 people were killed in a building collapse, the police on Monday filed a charge sheet against 27 accused, which included real estate developers, civic officials and a local corporator.