On 25 April 2023, a five-judge Constitution Bench in N.N. Global Mercantile v. Indo Unique Flame held by 3:2 that an unstamped arbitration agreement could not be acted upon under Section 11 of the Arbitration and Conciliation Act 1996. Eight months later, on 13 December 2023, a seven-judge Constitution Bench in In Re Interplay overruled it unanimously — restoring separability, kompetenz-kompetenz and the prima facie referral standard, and confining stamping to a curable Section 35 admissibility question for the tribunal. A close reading of the architecture, the 3:2 split, the seven-judge overruling, what was decided, what was left for the tribunal, and how the arc from SMS Tea Estates (2011) to Tarini Mohanty (2026) now reads end-to-end.