Conference Call to discuss Unaudited Financial Results for quarter ended June 30, 2026.

Ref. No.: IGL/CS/2026 August 10, 2026 Listing Compliance Listing Department BSE Ltd. National Stock Exchange of India Ltd. 1st Floor, P.J. Towers Exchange Plaza, Bandra Kurla Complex Dalal Street Bandra (E) Mumbai – 400 001 Mumbai – 400 051 Security Code : 532514 Trading Symbol : IGL Sub: Disclosure of material event/information under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (Listing Regulations, 2015) Pursuant to Regulation 30 of the Listing Regulations, 2015, this is to inform that a Conference Call to discuss Unaudited Financial Results for quarter ended June 30, 2026, is scheduled to be held on Friday, 14th August 2026 at 4.00 PM (IST). Invite of the same is enclosed. Please note that above information is subject to change. This is for your information and record. Thanking you, Yours sincerely, for Indraprastha Gas Limited (Vivek Sahay) Company Secretary & Compliance Officer Conference Call Invitation Quarterly Earnings Call PhillipCapital (India) Private Limited cordially invites you to participate in Indraprastha Gas Ltd (IGL IN) Q1FY27 Earnings Conference call Speakers Friday – 14th Aug 2026 @ 4 PM IST Mr. Kumar Shanker– Managing Director 06:30 PM Singapore & Hong Kong; 11:30 AM UK Mr. Mohit Bhatia – Director-Commercial Mr. Manjeet Gulati – CFO Express join with DiamondPass no wait time Click Here or copy paste the URL in browser Call Leader: https://services.choruscall.in/DiamondPassRegistration/register?confirmationNumb Nitin Tiwari, PhillipCapital India er=0175455&linkSecurityString=1858423c2 Conference dial-in: Primary Universal Number: 91-22- 6280 1143 / 7115 8044 The numbers listed above are universally accessible from all networks and all countries. Toll Free Numbers - USA: 18667462133 / UK: 08081011573 / Singapore: 8001012045 / Hong Kong: 800964448 #PhillipCapital (India) Private Limited remains committed to adhere to all regulatory guidelines and follow the best governance and transparency practices. Therefore: • The proceedings of this call will be recorded. • The list and full details of participants on the call will be shared by us with the corporate. Participants are expected to provide true and legitimate details. • All necessary disclosures on Stock Exchanges (including call invite intimation, recording details & call transcript) is expected to be complied by the respective corporate