New Delhi, May 4 -- Poriborton (meaning change in Bengali) was the big call across West Bengal, and poriborton it was when the final results emerged on Monday.

The Narendra Modi-led Bharatiya Janata Party (BJP) is set to register a watershed win in the 294-member assembly to unseat the ruling Mamata Banerjee-led Trinamool Congress (TMC) and end a 15-year rule.

As of 5.30 pm, BJP had a vote share of 45.4% and had won or was leading in 202 of the 293 seats for which results are available. It was largely a binary contest, and the other parties, like the Indian National Congress (INC) and Communist parties, barely registered a presence in seats.

In the 2021 assembly polls, the BJP had emerged as the leading opposition party with 77 seats a...