How an 8% vote shift helped BJP turn the tide and capture West Bengal for the first time
The Statesman | 6 May 2026
The Bharatiya Janata Party’s breakthrough in West Bengal has been powered by a sharp rise in its vote share, with an eight percentage point swing translating into a massive jump in seats and its first government in the state since independence.
According to data from the Chief Electoral Officer’s office, the BJP’s vote share climbed from 38 per cent in the 2021 Assembly elections to 46 per cent in 2026. The shift proved decisive, pushing the party’s seat count to 206, up by 129 from the 77 it held earlier.
The scale of the jump shows how a relatively small shift in votes can completely change the outcome in a state like West Bengal, where contests are often split multiple ways.
A look at the 2024 Lok Sabha trends in the state puts the BJP’s rise into perspective. In the Assembly segment-wise leads during the parliamentary polls, the party was ahead in only 90 constituencies, with a vote share of 39 per cent.
Cut to 2026, and a seven percentage point rise in vote share has turned that picture around. The BJP added 116 more seats compared to its 2024 standing, expanding its footprint across the state.
Meanwhile, the combined vote share of the CPI(M)-led Left Front and the Congress remained limited. Contesting separately this time, the Left Front secured around five per cent votes while Congress got close to three per cent, taking their combined share to about eight per cent.
This continues their downward slide in the state’s electoral politics. In both the 2021 Assembly elections and the 2024 Lok Sabha polls, the two parties had contested in alliance, with a combined vote share of just under nine per cent in 2021 and around eight per cent in 2024. Neither party had managed to win a single Assembly seat in 2021.
Despite the larger sweep by the BJP, a few smaller players managed to hold ground or make inroads.
All India Secular Front’s Nawsad Siddique retained his seat from Bhangar in the South 24 Parganas district.
In a notable development, former Trinamool Congress leader Humayun Kabir, who floated the Aam Janata Unnayan Party, won from both Naoda and Rejinagar constituencies in Murshidabad district, marking one of the few independent breakthroughs in the election.