Elections in the state of West Bengal are held as per the regulations of the Constitution of India. As per last West Bengal Legislative Assembly Elections 2016, for 294 seats (out of 295 seats) of the Vidhan Sabha, All India Trinamool Congress, under the leadership of their leader AND Chief Minister of the state Mamata Banerjee won 211 seats and was re-elected with a thumping majority. In 2011 West Bengal elections, the All India Trinamool Congress was in a coalition with the Indian National Congress and won with a clear majority and thus ended a 34 year rule of the Left-Front government.
Although Bharatiya Janata Party stood second but with mere 6 seats, All India Trinamool Congress swept Bengal civic polls with 140 seats. In Indian General Election, 2014, BJP, had just two out of the 42 Lok Sabha seats. In 2016, BJP won 6 out of the 295 seats in West Bengal Legislative Assembly Elections. The 2016 West Bengal Assembly Elections is probably the first time in some 2-3 decades when from West Bengal Election date till west Bengal Election Result date, having been absolutely peaceful, which actually reflects the verdict of the people. The 2016 West Bengal Elections was a real test for Mamata Banerjee government, especially after the series of tragedies like Flyover mishap, Sarada Chitfund scam, Narada sting and many other scams. The intensity of the Right wing BJP-Modi wave was a real test for BJP in West Bengal during 2014 Lok Sabha Elections.
The complete decimation of the Left-front happened, where leftists tried their level best to reap the benefits out of the different controversies, but failed miserably. Congress in West Bengal as mentioned before got votes from CPIM supporters, but at most places the veteran congress supporters did not vote for their left counterparts. As a result the Indian National Congress in West Bengal reaped the benefits of the alliance without losing anything. Trinamool Congress in West Bengal overcame all odds to regain power in Bengal. They even expanded their reach in rural areas. Even though the number of seats has increased, Trinamool Congress in West Bengal has lost their vote share marginally.
Bharatiya Janata Party (BJP) in West Bengal has the biggest improvement story in last Elections, despite not being in alliance with either of the parties. In 2011 West Bengal elections BJP had no seats (vote share of just 4%). With making space, BJP in West Bengal won two seats, managed a vote percentage of 10% and came second to TMC in few more seats.