LETTER ATTACHED

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 October 01, 2026 To, To, BSE Limited, National Stock Exchange of India Limited (NSE) Phiroze Jeejeebhoy Towers, Dalal Street, Exchange Plaza, Plot No. C/1, G Block Bandra Kurla Fort, Mumbai – 400 001. Complex, Bandra (East), Mumbai – 400 051 Scrip Code: 500108 Scrip Symbol: MTNL SUB: COMPLIANCE OF REGULATION 30 & 51 OF SEBI (LODR) REGULATIONS, 2015 - DISCLOSURE OF EVENTS OR INFORMATION – SALE OF MTNL PROPERTY AT POWAI PLOT-C, TECHNOLOGY STREET, POWAI, MUMBAI – 400076 TO INCOME TAX DEPARTMENT, THROUGH GOVERNMENT TO GOVERNMENT (G2G) TRANSFER / DIRECT SALE - reg Dear Sir, In compliance of Regulation 30 & 51 of SEBI (LODR) Regulations, 2015, this is to inform you that the Board of Directors vide Circular Resolution dated 01.10.2026 has approved the proposal for the Sale and Transfer of MTNL Property at Powai Plot-C, Technology Street, Powai, Mumbai – 400 076 to Income Tax Department at the Sale Value of Rs. 891.53 Crore for Land area of 20,895.60 Sqm as mentioned in the Rectification Deed through Government – to – Government (G2G) Transfer / Direct Sale in accordance with the receipt of Income Tax Department’s formal acceptance and based on Presidential Approval and Alternative Mechanism (AM) approval. We request you to kindly take the aforesaid information on record. Thanking You Yours Faithfully (RATAN MANI SUMIT) COMPANY SECRETARY