At the end of the first phase of elections in West Bengal on Saturday, a new front opened up between the BJP and Trinamool Congress - a tit-for-tat war of leaked phone conversations. NDTV cannot independently verify the authenticity of the tapes. The BJP expose was directed at embarrassing Chief Minister Mamata Banerjee with a call in which she is allegedly heard asking a former party worker to return to the fold. The party worker Proloy Pal is a follower of Suvendu Adhikari, Mamata Banerjee's estranged aide, at Nandigram and firmly with the BJP.