Who Rules Trinamool Now? Speaker Rathindra Bose Holds the Key as Mamata Faces Her ‘Shiv Sena’ Moment in Bengal

Bengal Politics Witnesses a Political Earthquake

West Bengal is witnessing one of the biggest political crises in the history of the Trinamool Congress (TMC). Just weeks after the 2026 Assembly elections, the party founded and led by Mamata Banerjee finds itself at the center of a full-scale internal rebellion.

What initially appeared to be dissatisfaction among a few legislators has now transformed into a battle for political legitimacy, legislative control, and potentially even the party's future identity.

At the center of this unprecedented drama stands Assembly Speaker Rathindra Bose, whose decisions could determine which faction ultimately controls Trinamool's legislative future.

Political observers are already calling this Mamata Banerjee's "Shiv Sena moment"—a reference to the dramatic split that reshaped Maharashtra politics in recent years.

Key Highlights

• Over 50 TMC MLAs have reportedly backed a rebel faction.

• Rebel leaders claim they represent the "real Trinamool" in the Assembly.

• Speaker Rathindra Bose has become the most influential constitutional authority in the crisis.

• The rebellion is largely directed against the influence of Abhishek Banerjee.

• Political experts are comparing the developments to Maharashtra's Shiv Sena split.

• The future of TMC's legislative identity is now under intense scrutiny.

Why Speaker Rathindra Bose Has Become the Most Powerful Man in Bengal Politics

The biggest question in Bengal politics right now is not just who controls Trinamool, but who decides who controls Trinamool.

That responsibility currently rests with Rathindra Bose.

The first-time MLA and current Speaker of the West Bengal Legislative Assembly has suddenly become the central figure in a constitutional and political battle. Reports indicate that the rebel faction submitted support letters from a substantial number of MLAs, seeking recognition within the Assembly structure. Speaker Bose's acceptance of the rebel bloc's legislative claim has dramatically changed the political landscape.

His decisions could influence future legal and political battles over legislative recognition, opposition leadership, and potentially broader questions regarding party legitimacy.

What Triggered the Rebellion?

The roots of the crisis go beyond electoral disappointment.

According to reports, tensions had been building within the party over leadership decisions, organizational functioning, and the growing influence of key power centers within TMC. The immediate flashpoint emerged during the controversy surrounding the selection of the Leader of the Opposition after the Assembly election results.

Several dissident leaders openly questioned decisions taken by the party leadership and challenged the authority exercised by senior figures within the organization.

The disagreement quickly escalated from an internal dispute into an organized rebellion involving a significant section of the party's legislative wing.

The Abhishek Banerjee Factor

A major theme emerging from the rebellion is opposition to the role of Abhishek Banerjee.

Interestingly, many rebels continue to publicly acknowledge Mamata Banerjee as the party's tallest leader while simultaneously questioning Abhishek Banerjee's influence over party affairs.

This distinction suggests that the crisis is not merely a challenge to Mamata Banerjee personally but also a battle over succession, organizational control, and the future direction of the party.

Political analysts believe this internal contradiction makes the situation even more complex than a conventional party split.

Is This Bengal's Version of the Shiv Sena Split?

The comparison with Maharashtra's Shiv Sena crisis has become unavoidable.

In Maharashtra, a large group of elected representatives challenged the party's official leadership, eventually leading to a historic split that transformed the state's political landscape.

While Bengal's political circumstances are different, the current developments share some striking similarities:

Similarities

• Large-scale legislative rebellion.

• Competing claims over party legitimacy.

• Questions regarding official leadership recognition.

• Constitutional authorities playing a decisive role.

• Potential future disputes over party symbol and organizational control.

However, there are important differences as well. Unlike Maharashtra, where government formation was at stake, the current Bengal battle is unfolding within the opposition space after TMC's electoral setback.

What Does This Mean for Mamata Banerjee?

For nearly three decades, Mamata Banerjee has been the unquestioned face of Trinamool Congress.

She built the party from the ground up, defeated the Left Front's long rule, and dominated Bengal politics for years.

Today, she faces perhaps the biggest organizational challenge of her political career.

The crisis comes at a particularly sensitive time, following electoral setbacks and growing public scrutiny over governance, corruption allegations, and internal party management. The rebellion has exposed divisions that were previously hidden from public view.

Many political observers believe the coming weeks could determine whether TMC remains a unified force or enters a prolonged period of factional conflict.

Impact on Common People and Bengal Politics

For ordinary citizens, political instability within a major party can have significant consequences.

Potential impacts include:

• Delays in opposition coordination.

• Changes in legislative functioning.

• Shifts in future electoral alliances.

• Increased political uncertainty ahead of future elections.

• Possible restructuring of opposition politics in West Bengal.

If the conflict deepens, it could alter the balance of power across the state and influence national opposition politics as well.

What Happens Next?

Several critical developments are expected in the coming days:

Watch Points

• Further claims by the rebel faction.

• Potential legal challenges.

• Decisions involving legislative recognition.

• Reorganization efforts by Mamata Banerjee.

• Possible intervention by national opposition leaders.

• Future claims regarding party identity and symbol.

Political analysts believe that the next few weeks will be crucial in determining whether this remains an internal revolt or evolves into a historic political split.

Conclusion

The question dominating Bengal politics today is simple yet profound: Who really rules Trinamool now?

While Mamata Banerjee remains the party's founder and most recognizable leader, the ongoing rebellion has fundamentally altered the political equation. With a large group of legislators challenging the existing structure and Speaker Rathindra Bose playing a pivotal constitutional role, the crisis has entered uncharted territory.

Whether Mamata Banerjee successfully regains full control or Bengal witnesses a Maharashtra-style political transformation remains to be seen. What is certain, however, is that West Bengal politics has entered one of its most dramatic chapters in decades.