<span style="color: #222222;">In West Bengal, ruling All India Trinamool Congress has won all four assembly constituencies which went to by-poll on 30th October.</span><br />'' <br />'' <span style="color: #222222;">In Dinhata seat of Coochbehar district, AITC candidate Udayan Guha defeated his nearest rival Ashok Mondol of the BJP by over 1 lakh 64 thousand votes.</span><br />'' <br />'' <span style="color: #222222;">In Gosaba of South 24 Parganas, Subrata Mondol of the AITC won by 1 lakh 43 thousand 51 votes, defeating his nearest rival Palash Rana of the BJP.</span><br />'' <br />'' <span style="color: #222222;">In Khardah seat of North 24 Parganas, AITC candidate, former minister Sovandeb Chattopadhyay won by 93 thousand 832 votes against his nearest rival Joy Saha of the BJP.</span><br />'' <br />'' <span style="color: #222222;">While in Santipur seat of Nadia district, Braja Kishore Goswami won by nearly 65 thousand votes. He defeated Niranjan Biswas of the BJP.</span><br />