Separate Sitting Arrangements in the West Bengal Assembly: Implications of Dual‑Room Allocation for Trinamool Factions

Introduction

The 2026 session of the West Bengal Legislative Assembly has taken an unprecedented turn: two distinct chambers have been earmarked for rival factions of the All India Trinamool Congress (AITC). While the decision appears to be a logistical response to intra‑party discord, it carries far‑reaching consequences for legislative efficiency, governance stability, and the political economy of the state. This article dissects the origins of the split, evaluates the procedural mechanics of dual‑room allocation, and projects the practical impact on policy making across Bengal’s 23 districts.

Main Analysis

Historical backdrop of factionalism in the Trinamool

Since its inception in 1998, the Trinamool has oscillated between a monolithic opposition to the Left Front and a dominant governing party after the 2011 landslide victory. Internal fissures, however, have been a recurring theme. A 2019 internal audit revealed that 12 % of the party’s 200+ MLAs had expressed dissent on key policy matters, ranging from land acquisition to industrial licensing. The 2024 state elections intensified these divisions, as the party’s vote share slipped from 34.5 % to 31.2 %, prompting senior leaders to vie for control of the party’s strategic direction.

Procedural mechanics of dual‑room allocation

Under the Rules of Procedure and Conduct of Business in the West Bengal Assembly, a “separate sitting arrangement” can be sanctioned when a party’s internal dispute threatens the orderly conduct of business. The Speaker’s office, citing Rule 23(b), authorized the creation of two parallel chambers: the traditional Hall A for the “official” Trinamool caucus, and a newly refurbished Hall B for the dissenting group led by former Finance Minister Arindam Sen. Both chambers are equipped with identical voting consoles, audio‑visual systems, and live‑streaming capabilities.

Statistically, the split is almost even: 84 MLAs remain aligned with Chief Minister Mamata Banerjee’s core faction, while 78 MLAs have joined the Sen bloc. The remaining 38 seats are occupied by opposition parties (Bharatiya Janata Party, CPI(M), and independents). The dual‑room arrangement thus creates a de‑facto “two‑house” scenario within a single legislature, a rarity in Indian parliamentary practice.

Impact on legislative workflow

Legislative throughput is expected to decline sharply. In the 2023 session, the Assembly passed 152 bills in a 180‑day calendar, averaging 0.84 bills per day. Early estimates from the Assembly Secretariat suggest that the bifurcated sitting will reduce the effective sitting time by 30 %, potentially limiting the 2026 session to 126 bills. Critical legislation—such as the “West Bengal Renewable Energy Act” and the “Urban Housing Revitalisation Bill”—may be delayed, affecting the state’s ambitious targets for 2030.

Political calculus and power dynamics

The dual‑room decision is as much a tactical maneuver as it is a procedural necessity. By granting the dissenting faction a separate chamber, the Speaker preserves the appearance of parliamentary decorum while preventing a mass walk‑out that could cripple quorum. However, the arrangement also legitimises the splinter group, granting it equal procedural privileges, including the right to table motions, request committee referrals, and demand floor time.

From a power‑balance perspective, the split dilutes the Trinamool’s voting bloc. In a simple majority system, the combined Trinamool strength of 162 MLAs (84 + 78) would comfortably outvote the opposition’s 38 seats. Yet, the internal rivalry means that coordinated voting is unlikely. Historical precedent from the 1990s Karnataka Assembly shows that when a ruling party’s internal cohesion falls below 70 %, the opposition can leverage procedural motions to stall legislation, a scenario now plausible in Bengal.

Regional implications for policy implementation

West Bengal’s development agenda is heavily reliant on state‑level coordination. The dual‑room arrangement threatens to fragment policy execution across districts. For instance, the “Bengal Rural Water Supply Initiative,” which targets 1.2 million households, requires synchronized budget approvals. If the two Trinamool factions disagree on allocation formulas, districts such as Malda and Murshidabad could experience funding gaps of up to ₹150 crore each.

Moreover, the industrial corridor stretching from Haldia to Durgapur—projected to generate 3.5 million jobs by 2035—relies on swift legislative endorsement of land‑use changes. A fragmented Assembly could delay the “Industrial Land Consolidation Bill” by an estimated 12‑18 months, eroding investor confidence and potentially diverting capital to rival states like Odisha and Gujarat.

Comparative perspective: Dual‑room precedents worldwide

While Indian legislatures rarely adopt dual‑room formats, comparable mechanisms exist in other parliamentary systems. The United Kingdom’s “Committee of the Whole House” allows a single chamber to operate under modified rules, but never splits physically. In contrast, the German Bundestag occasionally convenes “parallel sessions” for coalition and opposition parties during confidence votes, though these are procedural rather than spatial.

The closest analogue is the 2022 South African National Assembly, where the African National Congress (ANC) temporarily divided its caucus into “main” and “reform” groups, each occupying separate sections of the chamber. That experiment resulted in a 22 % reduction in legislative output and heightened public criticism of party discipline. West Bengal’s experiment may therefore serve as a case study for other Indian states grappling with intra‑party fragmentation.

Examples

Case Study 1: The “Renewable Energy Act” delay

The Renewable Energy Act, introduced in March 2026, aims to increase solar capacity from 5 GW to 12 GW by 2030. The bill passed the first reading with a 140‑vote majority. However, after the split, the Sen faction raised procedural objections, demanding a separate committee review. The resulting stalemate added 45 days to the legislative calendar, pushing the final vote to the last session of the year. The delay forced the state’s energy department to renegotiate power purchase agreements, incurring an estimated ₹2.3 billion in additional costs.

Case Study 2: Urban Housing Revitalisation Bill

In Kolkata, the Urban Housing Revitalisation Bill seeks to regularise 1.8 million informal settlements. The original draft allocated ₹9,500 crore for infrastructure upgrades. During the dual‑room debate,