The Supreme Court has added a further layer of clarity to one of the most contested questions in Indian arbitration practice — when can a party that never signed the arbitration agreement still be pulled into the arbitration itself? The Court held that a non-signatory's actual involvement in performing the underlying contract is among the most important factors in deciding whether that party is bound by the arbitration clause it never put its name to.
The case turned on a settlement structured through a Memorandum of Settlement (MoS) as part of a share acquisition, where one respondent had not signed the arbitration agreement but whose share transfer was indispensable to completing the transaction — without his shares moving, the settlement contemplated under the MoS simply could not be fully implemented. The Court treated this kind of practical, functional entanglement in the transaction — not merely a party's name appearing somewhere in the paperwork — as strong evidence that the non-signatory intended to be bound by the arrangement as a whole, arbitration clause included.
The ruling sits within the 'group of companies' and composite-transaction doctrines that Indian courts have been steadily developing over the past decade, moving away from a rigid insistence on formal signature toward a more functional inquiry into whether a non-signatory's conduct demonstrates a genuine intention to be bound. The Court flagged the composite nature of the transaction and the commonality of subject matter between the non-signatory's role and the arbitrable dispute as additional factors supporting the same conclusion — the claims against the non-signatory were, in substance, interlinked with the very issues the arbitration was meant to resolve, not a separate dispute artificially bundled in.
For parties structuring multi-party transactions — settlements, group restructurings, acquisitions involving several affiliated entities only some of whom sign the core contract — the practical lesson is that staying formally unsigned does not guarantee staying outside the arbitration. Where a related entity or individual is functionally indispensable to performing the transaction the arbitration agreement sits within, that involvement can itself become the basis for being bound. Deal counsel should treat this as a reason to be deliberate about which entities actually execute the arbitration agreement, and to document clearly wherever a non-signatory's role is meant to be genuinely peripheral rather than integral to performance.