Kolkata, Dec 11 (TIWN) It all started a decade ago. When the Mamata Banerjee-led Trinamool Congress had toppled the 34-year-old Communist Party of India-Marxist (CPI-M) led Left Front government in West Bengal, they had coined a slogan, "Badla Noi, Badal Chai" (we don't want revenge, we want change).

But over a period of the last 10 years, the political situation has undergone a sea change in Bengal with the Narendra Modi-led Bharatiya Janata Party (BJP) rising to the status of arch-rival to the incumbent formation. Taking its vote share from 4 per cent to over 40 per cent in the 2019 general elections, it was indeed an uphill task for the BJP.