General Updates

Date: 30th July, 2026 To, To, The Listing Department, The Listing Department, National Stock Exchange of India Limited BSE Limited Exchange Plaza, 5th Floor, 1st Floor, New Trading Ring, Plot No. C/1, G Block, Rotunda Building, Bandra - Kurla Complex, Phiroze Jeejeebhoy Towers, Bandra (East), Mumbai - 400051 Dalal Street, Mumbai - 400001 NSE Code: GAMMONIND BSE Code: 509550 Dear Sir / Madam, Sub: Outcome of Board Meeting held on 30th July, 2026 pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. Pursuant to Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, you are hereby informed that the Board of Directors (“Board”) of the Company at its meeting held on 30th July, 2026 which commenced at 03:00 p.m. and concluded at 04:21 p.m. inter - alia approved: 1. The draft notice of the upcoming Annual General Meeting (AGM) that is scheduled to be held on Saturday, 29th August, 2026 at 02:30 P.M. through Video Conferencing (VC) / Other Audio Visual Means (OAVM), to transact the ordinary and special businesses as set out in the draft Notice. 2. The cut-off date for E-Voting to determine the eligibility of members to vote remotely and at the AGM pursuant to Section 108 read with Rule 20 of the Companies (Management and Administration) Rules, 2014 that would be 22nd August, 2026. You are requested to take note of the same. Thanking you, Yours faithfully, For Gammon India Limited Roshni Kapshiwal Company Secretary and Compliance Officer Membership Number: A73894 Date: 30th July, 2026 Place: Mumbai GAMMON INDIA LIMITED Registered Office: Floor 3rd，Plot - 3/8, Hamilton House, J. N. Heredia Marg, Ballard Estate, Mumbai - 400 038. Maharashtra, India; Telephone: +91-22-2270 5562 E-Mail: investors@gammonindia.com Website: www.gammonindia.com CIN: L74999MH1922PLC000997