India is a signatory to the New York Convention, and foreign awards made in a Convention country that India has notified as a reciprocating territory are enforceable in India under Part II of the Arbitration and Conciliation Act, 1996, without needing a fresh domestic arbitration or lawsuit.
Enforcement is refused only on narrow grounds broadly mirroring the New York Convention itself — incapacity, invalid agreement, lack of notice, awards beyond scope, improper composition of the tribunal, or conflict with India's public policy — the same restrained standard courts apply to domestic awards under Section 34.
For Indian parties contracting with foreign counterparties, choosing a seat in a Convention country (India included) materially affects how easily a favourable award can later be enforced against assets located elsewhere.