Intimation of ESG Rating by NSE Sustainability Ratings and Analytics Limited

16th October 2026 National Stock Exchange of BSE Limited (Scrip Code: India Limited (Scrip Code: FSL) 532809) Exchange Plaza, Phiroze Jeejeebhoy Towers, Plot no. C/1, G Block, Dalal Street, Bandra-Kurla Complex Mumbai - 400 001 Bandra (East), Mumbai - 400 051 Dear Madam/ Sir, Sub: Intimation of ESG ratings pursuant to Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“SEBI Listing Regulations”) Pursuant to Regulation 30 read with Para A(3) Part A of Schedule III of the SEBI Listing Regulations, this is to inform that NSE Sustainability Ratings and Analytics Limited has assigned an ESG rating of 75.00 to the Firstsource Solutions Limited (“Company”). The said rating was intimated to the stock exchanges by NSE Sustainability Ratings and Analytics Limited on 16th October 2026 at 2:09 p.m. (IST). We would like to clarify that the Company has not engaged NSE Sustainability Ratings and Analytics Limited for any such rating or report and the same is independently prepared by them based on information available in the public domain. 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)