The Bharatiya Janata Party (BJP) won 206 seats [1] in the 2026 West Bengal Legislative Assembly election, ending the 15-year rule [1] of Mamata Banerjee.

The result represents a major political shift in India's eastern region. The victory removes the All India Trinamool Congress (TMC) from power after more than a decade of dominance under Banerjee.

Questions have emerged regarding the role of the Election Commission’s Special Intensive Revision (SIR) process in the outcome. Analysts said that the deletion of voter entries under this process may have altered voter rolls in close contests, potentially influencing results in favor of the BJP.

Data indicates that voter deletions under the SIR exceeded the winning margin in nearly 50 constituencies [1]. This has led to scrutiny over whether the administrative revision of rolls contributed to the TMC's loss in those specific areas.

The BJP's victory of 206 seats [1] marks a decisive change in the state's legislative landscape. The scale of the win suggests a broad shift in voter preference or the impact of administrative changes to the electorate.

The TMC, led by Banerjee, had maintained control of the state for 15 years [1] before this election. The current results signal the end of that era as the BJP takes control of the assembly.

The BJP won 206 seats in the 2026 West Bengal Legislative Assembly election.

The transition of power from the TMC to the BJP in West Bengal signifies a collapse of a long-standing regional stronghold. The controversy surrounding the Special Intensive Revision suggests that technical administrative processes regarding voter eligibility can have a disproportionate impact on the final outcome in tight electoral races.