WB Polls: Will ISF, Left & Congress alliance harm Mamata Banerjee?

West Bengal politics is heating up and the political fight between the parties is on the rise. Pirzada Abbas Siddiqui has formed a party named ISF and on Tuesday the Congress and Left finalised an election alliance with Indian Secular Front (ISF). This may harm Mamata Banerjee's vote bank. Watch the video to know the details.