Trinamool Congress crisis has exploded after senior party leader Kalyan Banerjee publicly attacked Abhishek Banerjee and issued a dramatic ultimatum to party chief Mamata Banerjee. Kalyan Banerjee accused Abhishek of sidelining senior leaders, humiliating him by replacing him as counsel in a key legal matter, and contributing to the party's ongoing political troubles. In a stunning statement, he urged Mamata Banerjee to choose between her loyalists and her nephew. The public confrontation comes at a time when the TMC is already battling internal unrest, rebellion from sections of its leadership, and mounting pressure from an ongoing forgery investigation.