Trinamool MLA Rabindranath Bhattacharya has threatened to leave Trinamool Congress. Singur MLA Rabindranath Bhattacharya said, 'If you want to do politics, you have to change parties. There is a conspiracy going on to weaken the organization and Trinamool Congress in Singur. Becharam is behaving unfairly against me.' Becharam said that, 'I am unhappy with his co more