“From anger over women's safety to polarization of Hindu votes – public anger erupts in Bengal, BJP creates history by breaking the 15-year-old fort!”

The BJP won 206 seats in the West Bengal Assembly elections, while the Trinamool Congress secured 80 seats. The result marks the end of the state's 15-year-old rule.
Chief Minister Mamata Banerjee also suffered a major setback when she lost to Suvendu Adhikari from the Bhabanipur seat by more than 15 thousand votes. After the results, Mamata Banerjee alleged rigging, "vote loot" and misuse of central agencies in the elections.
The main reasons behind the defeat (in a little detail)
Questions on women's safety TMC's schemes like Lakshmi Bhandar, Kanyashree etc. were earlier holding strong among women. But after incidents like RG tax, the feeling of insecurity among women increased. In many places, women openly expressed their resentment against the government, which had a direct impact on the voting.
Impact of SIR (Electoral Roll Revision) Millions of names were deleted in the Intensive Revision of Electoral Roll (SIR). The opposition alleged that it affected the TMC's traditional vote bank, while the BJP claimed that it eliminated bogus votes. It is clear from the results that this process changed the electoral balance.
Allegations of corruption and administrative failure cut-money, syndicate raj, and corruption at the government level had been brewing for a long time. This time, these issues were more effective and public anger against the government came out in the open.
4) The polarisation of Hindu votes.
This election saw a massive polarisation of Hindu votes, which directly benefited the BJP. Significantly, some traditional TMC voters also shifted towards the BJP.
5. Heavy deployment of Central Forces Deployment of about 2.4 lakh Central Security Forces made the elections relatively peaceful. This reduced the possibility of "voting under fear or pressure," which was earlier considered to go in favour of the ruling party.