Goa, May 4 -- Counting of votes for Assembly elections across West Bengal, Assam, Tamil Nadu, Kerala and the Union Territory of Puducherry is underway, with early trends indicating significant political shifts.The Bharatiya Janata Party has made major gains in West Bengal, leading in over 130 seats and putting the ruling All India Trinamool Congress under pressure. Celebrations have already begun at several BJP offices as the party edges closer to a potential breakthrough in the state.In Assam, the BJP is ahead in a majority of seats, though the Indian National Congress is putting up a strong challenge in several constituencies, making the contest competitive.Tamil Nadu has delivered one of the biggest surprises so far, with actor Vijay's...