Updates

MAHANAGAR TELEPHONE NIGAM LIMITED (A GOVERNMENT OF INDIA ENTERPRISE) CIN L32101DL1986GOI023501 Registered and Corporate Office: Mahanagar Doorsanchar Sadan 5th Floor, 9 CGO Complex, Lodhi Road, New Delhi - 110 003. Tel: 011-24319020, Fax: 011-24324243, Website: www.mtnl.in, Email: mtnlcsco@gmail.com MTNL/SECTT/SE/2026 September 05, 2026 To, To, BSE Limited, National Stock Exchange of India Limited (NSE) Phiroze Jeejeebhoy Towers, Dalal Street, Fort, Exchange Plaza, Plot No. C/1, G Block Bandra Kurla Mumbai – 400 001. Complex, Bandra (East), Mumbai – 400 051 Scrip Code: 500108 Scrip Symbol: MTNL SUB: NOTICE OF CLOSURE OF REGISTER OF MEMBERS AND SHARE TRANSFER BOOKS UNDER REGULATION 42 OF SEBI (LODR) REGULATIONS, 2015 - reg Dear Sir, This is to inform you that the 40th Annual General Meeting (AGM) of Mahanagar Telephone Nigam Limited (MTNL) is scheduled to be held on Wednesday, 30th September 2026 at 11.30 A.M. through VC/OAVM. Provision Relevant Date Date of Closure of Register of Members and Share From Thursday, September 24, 2026 to Transfer Books for the purpose of Annual Wednesday, September 30, 2026 (both days Closing/AGM. inclusive) (Section 91 of the Companies Act, 2013 and Regulation 42 of SEBI (LODR) Regulations, 2015) Kindly take the above information on record. Thanking You, Yours faithfully (RATAN MANI SUMIT) COMPANY SECRETARY