Mamata's to face BJP's Priyanka Tibrewal in her big Bhabanipur prestige battle. This is an election that Mamata needs to win in order to hold on to her CM office. TMC supremo Mamata Banerjee will file her nomination for by-polls to the Bhabanipur seat today. This comes months after her party dominated the BJP in the West Bengal assembly elections but Banerjee was routed by turncoat leader Suvendu Adhikari in Nandigram. Watch the video to know more.