"A casting vote cannot cure a missing class-specific approval." Examine with reference to corporate governance at Tata Sons.

A casting vote is a tie-breaker in the total count of directors; a class-specific approval is a separate gate requiring assent from a defined class — here, a majority of the Tata Trusts' nominee directors under Article 121 of Tata Sons' Articles of Association. The September 2026 board decision on N. Chandrasekaran's third term shows why the two cannot be substituted for each other.

Why the two gates are distinct

• Articles of association are a binding contract between company and members under Section 10, Companies Act, 2013 [1]; a clause cannot be read out of existence by convenience.
• The board recorded 4–1, but the two Trust nominees split 1–1 — the Article 121 gate was never crossed, whatever the aggregate tally.
• The Supreme Court in the Tata–Mistry judgment (26 March 2021) set aside the NCLAT order yet declined to delete the nominee directors' affirmative-voting right [2], leaving the safeguard legally intact.

The counter-view, and its weakness

• The casting vote is itself in the same rulebook, and whether Article 121 covers a reappointment as against a first appointment is genuinely unsettled.
• But if a veto binds at hiring and not at renewal, it can be escaped indefinitely — draining the clause of force. Conversely, a strict veto lets two of six directors freeze the board.

Governance stakes beyond the clause

• RBI's scale-based framework requires an upper-layer NBFC to be listed within three years of identification, with listed-company disclosures even before listing [1]; Tata Sons' deadline lapsed in September 2025, and that pressure sits behind the boardroom split.
• A controlling charitable trust faces no shareholder vote, so deadlock has no internal referee.

The dispute is less about one term than about a rulebook silent on what follows an unmet class approval. A negotiated settlement plus an amended tie-breaker article is preferable to litigation; Sections 241–242 remain the statutory fallback [3], but the Mistry years show how costly that route is for institutional stability.