The new West Bengal Chief Minister will take the oath of office on May 9, 2026 [1].

This transition marks a fundamental shift in the state's political landscape. The Bharatiya Janata Party (BJP) has ended 15 years [1] of rule by the Trinamool Congress (TMC), signaling a change in governance for one of India's most populous states.

Samik Bhattacharya, the BJP state chief for West Bengal, said the date for the ceremony [1]. The event is scheduled to coincide with the birth anniversary of Rabindra Tagore [2].

The government-formation process follows a decisive performance by the BJP in the 2026 West Bengal assembly election. The party secured 206 seats [1] in the legislature, providing a substantial mandate to establish a new administration in the state capital of Kolkata [2].

Bhattacharya said the ceremony is the final step in the process of establishing the new government [1]. The victory represents a significant consolidation of power for the BJP in the region, a territory previously dominated by the TMC for over a decade [1].

Officials are now coordinating the logistics for the May 9 event [1]. The swearing-in will formally vest executive power in the new Chief Minister and their appointed cabinet, ending the interim period following the election results [1].

The new West Bengal Chief Minister will take the oath of office on May 9, 2026.

The BJP's acquisition of 206 seats represents a landslide victory that fundamentally alters the power dynamics of West Bengal. By displacing the TMC after 15 years, the new administration is likely to implement significant policy shifts in state governance and administration, while the choice of Rabindra Tagore's birth anniversary for the ceremony suggests a strategic effort to align the new government with regional cultural identity.