Intimation of Closure of Trading Window for Q2FY27, is as enclosed

28th September 2026 National Stock Exchange of India BSE Limited (stock code:532809) Limited (stock code: “FSL”) Phiroze Jeejeebhoy Towers, Exchange Plaza, Dalal Street, Plot no. C/1, G Block, Mumbai - 400 001 Bandra-Kurla Complex, Bandra (East) Mumbai - 400 051 Dear Madam/ Sir, Sub: Notice of Trading Window Closure for Q2 FY2026-27 In reference to the clarification regarding trading restriction period issued by National Stock Exchange of India Limited vide its Letter Ref No: NSE/CML/2019/11 dated 2nd April 2019 and BSE Limited vide its Letter Ref. No: LIST/COMP/01/2019-20 dated 2nd April 2019 and in view of Prohibition of Insider Trading, Regulations 2015, the “Trading Window” for Trading in the securities of the Company will remain closed from Monday, 28th September 2026 (from the closure of business hours) till conclusion of the 48 hours post the Board Meeting for the purpose of declaration of financial results for the quarter and half year ended 30th September 2026, the date of which shall be intimated in due course. You are kindly requested to take the same on record and oblige. Thanking You, For Firstsource Solutions Limited Pooja Nambiar Company Secretary Firstsource Solutions Ltd 1st Floor, Athena Towers, Mindspace Malad, Goregaon (W), Mumbai – 400 063 India Tel: +91 (22) 6666 0888 | Fax: +91 (22) 6666 0887 | Web: www.firstsource.com (CIN: L64202MH2001PLC134147)