Congress leader Adhir Ranjan Chowdhury on October 24 claimed that West Bengal Chief Minister Mamata Banerjee is helping BJP by opposing Congress. “Mamata Banerjee is helping Bharatiya Janata Party (BJP) by opposing Congress. She is becoming an agent of PM Modi. Looks like they had an agreement that 'Delhi yours, Kolkata ours' otherwise she wouldn't have spoken useless things about Congress,” said Congress leader.