Now, Diamond Harbour TMC MLA quits party Updated: Updated: Singur lawmaker stays away from party event Share Article Singur lawmaker stays away from party event Defections from the Trinamool Congress continue unabated- on Monday, Diamond Harbour MLA Dipak Kumar Halder resigned from the party. Diamond Harbour, located in South 24 Parganas district, was a constituency that voted overwhelmingly for Trinamool Congress MP Abhishek Banerjee in 2019. A few days ago, Mr. Halder met former Kolkata Mayor Sovan Chatterjee, who had defected from the TMC to the BJP more than two years ago. The meeting and the subsequent resignation have fuelled speculation that Mr. Halder is all set join the BJP.