SC stays Mukul Roy’s disqualification from Bengal Assembly


UPSC Study Note: SC Stays Mukul Roy's Disqualification from Bengal Assembly


1. At a Glance


2. Why in the News


3. Background & Evolution

Year Event
1985 Tenth Schedule added to the Constitution via the 52nd Constitutional Amendment Act, instituting the anti-defection law.
1992 Kihoto Hollohan v. Zachillhu — Supreme Court upheld constitutional validity of the Tenth Schedule but held that Speaker's decisions are subject to judicial review (not immune). [S4]
2021 (June) Mukul Roy, elected as BJP MLA from Krishnanagar Uttar constituency in the 2021 West Bengal elections, publicly re-joined Trinamool Congress (TMC). Disqualification petition filed against him. [S1][S2]
2022 West Bengal Assembly Speaker rejected the disqualification petition, finding insufficient material to establish defection. [S1][S2]
2023–25 Calcutta High Court Division Bench set aside the Speaker's order; matter remanded; HC subsequently disqualified Mukul Roy under Tenth Schedule. [S1][S2]
Jan 2026 Supreme Court stays HC disqualification order; raises issues of evidentiary standard and AI-manipulated media. [S1][S3]

4. Core Static Facts

The Anti-Defection Law — Tenth Schedule: - Added by 52nd Constitutional Amendment, 1985; operative under Articles 102(2) and 191(2) of the Constitution. - Applies to both Parliament and State Legislatures. - Grounds for disqualification: (a) Voluntarily giving up party membership; (b) Voting/abstaining contrary to party direction without prior permission. - Exception: Merger of at least two-thirds of party's legislature members (post-91st Amendment, 2003). - Decision-maker: Speaker (Lok Sabha/State Assembly) or Chairman (Rajya Sabha/State Council) — functions as a quasi-judicial authority. - Judicial review: Available, as held in Kihoto Hollohan (1992), but Courts intervene only after the Speaker decides (except in cases of mala fide or procedural violation).

Section 65B, Indian Evidence Act, 1872: - Governs admissibility of electronic records (emails, videos, social media content) as evidence. - Requires a certificate from a responsible official of the computer/device attesting to the authenticity of the electronic record. - Standard established by the Supreme Court in Arjun Panditrao Khotkar v. Kailash Kushanrao Gorantyal (2020): Section 65B certificate is mandatory, not optional, for secondary electronic evidence.

Key Actors in this case: - Mukul Roy — BJP-turned-TMC politician; MLA from Krishnanagar Uttar, West Bengal - Suvendu Adhikari — West Bengal Opposition Leader (BJP); petitioner seeking disqualification - CJI Surya Kant — presided over the Supreme Court bench that granted the stay - West Bengal Assembly Speaker — original adjudicatory authority


5. Multi-Dimensional Analysis

Legal / Constitutional

Governance / Ethical

Scientific / Technological

Political / Historical


6. Recent Developments (Last 12–18 Months)


7. Prelims Hooks

  1. The anti-defection law is contained in the Tenth Schedule of the Constitution, inserted by the 52nd Constitutional Amendment Act, 1985.
  2. Articles 102(2) and 191(2) provide for disqualification of MPs and MLAs respectively on grounds of defection.
  3. The Speaker of the State Legislative Assembly is the sole adjudicatory authority for disqualification under the Tenth Schedule.
  4. In Kihoto Hollohan v. Zachillhu (1992), the Supreme Court upheld the Tenth Schedule but ruled that Speaker's decisions are subject to judicial review.
  5. Section 65B of the Indian Evidence Act mandates a certificate of authenticity for admissibility of electronic records as secondary evidence — ruled mandatory (not optional) in Arjun Panditrao Khotkar (2020).
  6. The 91st Constitutional Amendment (2003) raised the threshold for a valid merger from one-third to two-thirds of the legislature party.
  7. The Bharatiya Sakshya Adhiniyam, 2023 (BSA) replaced the Indian Evidence Act; its Section 63 is the equivalent of the old Section 65B on electronic evidence.
  8. Mukul Roy was elected as BJP MLA from Krishnanagar Uttar constituency in the 2021 West Bengal elections.
  9. The West Bengal Assembly Speaker rejected the initial disqualification petition against Mukul Roy (circa 2022) on grounds of insufficient evidence.
  10. The Supreme Court in Mukul Roy's case (Jan 2026) noted the HC wrongly applied the standard of "preponderance of probability" to a defection case.
  11. Chief Justice of India Surya Kant presided over the SC bench that granted the stay in January 2026.
  12. The disqualification petition in the Mukul Roy case was originally filed by Suvendu Adhikari, the West Bengal Opposition Leader (BJP).
  13. Under the Tenth Schedule, "voluntarily giving up membership" of a party is a ground for disqualification even without a formal resignation from the party (as held by SC in multiple cases).

8. Mains Relevance

GS Paper: GS-II (Indian Polity and Governance)

Syllabus Headings: - Parliament and State Legislatures — Structure, Functioning, Powers, Privileges - Appointment to Various Constitutional Posts, Powers, Functions and Responsibilities of Various Constitutional Bodies - Separation of Powers between various organs — Dispute Redressal Mechanisms and Institutions

Plausible Mains Questions: 1. "The anti-defection law has failed to achieve its original objective of preventing political horse-trading." Critically examine, with reference to the role of the Speaker and recent judicial interventions. (GS-II, 15 marks) 2. "The growing sophistication of AI-generated media poses a fundamental challenge to adjudicatory proceedings in constitutional courts and legislative bodies." Discuss in the context of the Mukul Roy case and the electronic evidence framework under the Bharatiya Sakshya Adhiniyam, 2023. (GS-II/GS-III, 15 marks) 3. Should the power to decide disqualification petitions under the Tenth Schedule be taken away from the Speaker and vested in an independent tribunal? Examine the arguments for and against. (GS-II, 10 marks)


9. Related Topics to Study Next

Topic Connection
Anti-Defection Law (Tenth Schedule) — Full Analysis Direct statutory/constitutional basis of this case
Speaker's Role and Powers in State Legislatures Central to Mukul Roy case — quasi-judicial function, conflict of interest
Kihoto Hollohan v. Zachillhu (1992) Foundational SC judgment on Tenth Schedule validity and judicial review
Electronic Evidence — Section 65B / BSA Section 63 Core evidentiary issue raised by SC in this case
AI Deepfakes and Law — Regulatory Framework in India CJI's AI observation makes this directly relevant
Judicial Review of Legislative Proceedings Article 212 (courts not to inquire into proceedings) vs Tenth Schedule review
91st Constitutional Amendment Act, 2003 Modified anti-defection merger threshold; must know alongside 52nd Amendment

10. Common Errors / Trap Areas

  1. Wrong Amendment Year: The Tenth Schedule was inserted by the 52nd Amendment (1985), NOT the 42nd or 44th Amendment (common mix-up). The 91st Amendment (2003) modified it.
  2. Speaker vs. Governor: Disqualification under the Tenth Schedule is decided by the Speaker (not the Governor), and at the Centre by the Lok Sabha Speaker / Rajya Sabha Chairman.
  3. Section 65B is mandatory, not optional: Post Arjun Panditrao Khotkar (2020), the SC clarified that the 65B certificate cannot be waived; earlier cases (Shafhi Mohammad, 2018) that called it optional are overruled. Aspirants often cite the older position.
  4. "Preponderance of probability" vs. criminal standard: In constitutional/quasi-criminal proceedings like defection, courts have not settled on a uniform standard — assuming the civil standard applies is the trap the HC fell into, as the SC observed.
  5. Mukul Roy's party trajectory: He was originally a TMC founder-member → BJP (2017) → back to TMC (2021). The disqualification relates to the BJP-to-TMC leg. Confusing the direction of defection is a common factual error.

11. Sources