Kolkata:Trinamool Congress chief Mamata Banerjee on Tuesday filed an election petition before the Calcutta High Court challenging the poll result in the Bhabanipur Assembly constituency, where she lost to Bharatiya Janata Party leader Suvendu Adhikari. Adhikari, West Bengal’s first BJP Chief Minister, had defeated Banerjee by a margin of more than 15,100 votes. The BJP leader had also defeated another TMC candidate in the Nandigram constituency, which he vacated on May 15. In 2021 as well, Banerjee had filed a similar petition after she lost to Adhikari in Nandigram by a margin of 1,956 votes.