General Updates

OIL AND NATURAL GAS CORPORATION LIMITED COMPANY SECRETARIAT ONGC/CS/SE/2026-27 20.08.2026 National Stock Exchange of India Ltd. BSE Limited Listing Department Corporate Relationship Department Exchange Plaza Phiroze Jeejeebhoy Towers Bandra-Kurla Complex, Bandra (E) Dalal Street, Fort Mumbai – 400 051 Mumbai – 400 001 Symbol-ONGC; Series – EQ BSE Security Code No. Equity: 500312 NCD: 959881 Subject: Addendum to Notice of 33rd Annual General Meeting Madam/ Sir, This has reference to the Notice of 33rd Annual General Meeting (AGM) of the Members of OIL AND NATURAL GAS CORPORATION LIMITED scheduled to be held on Monday, the 31st August, 2026, at 11:00 A.M. (IST) through Video Conferencing (“VC”)/ Other Audio Visual Means (“OAVM”). The Board of Directors of the Company has approved the appointment of Dr. Archna Thakur (DIN: 11719170) as Non-Official Independent Director of the Company in terms of Letter No.CA-31033/1/2026-CA-PNG (55708) dated 12.08.2026 issued by the Ministry of Petroleum and Natural Gas, Government of India It is further informed that the Company has received a notice from a Member proposing candidature of Dr. Archna Thakur (DIN: 11719170) as Independent Director on the Board of the Company in terms of Section 160 of the Companies Act, 2013. As the appointment of Dr. Archna Thakur (DIN: 11719170) was made subsequent to the issuance of the Notice of AGM dated 07.08.2026, an Addendum to the Notice of 33rd Annual General Meeting is being sent through email to the members whose e-mail IDs were registered with Registrar and Share Transfer Agent (RTA) of the Company/ Depositories participant(s) as on cut-off date Friday, 24th July, 2026. In addition, Newspaper advertisements, both in English and Hindi editions, are being published. Accordingly, the following Special Business Item No. 11 shall stand inserted in the Notice of the 33rd AGM and shall be deemed to form an integral part thereof: Item No. 11: "Appointment of Dr. Archna Thakur (DIN: 11719170) as an Independent Director of the Company” Except as stated above, all other terms, conditions and contents of the Notice of 33rd AGM shall remain unchanged. This is for your information and record, please. Thanking You, Yours Sincerely, For Oil and Natural Gas Corporation Ltd. (Shashi Bhushan Singh) Company Secretary & Compliance Officer Regd. Office: Plot No 5A-5B, Nelson Mandela Marg, Vasant Kunj, New Delhi-110070 Phone: 011-2675 4073, 011-2675 4085 EPABX : 2675 0111, 2629000 FAX : 011-26129081 CIN: L74899DL1993GOI054155, Website: www.ongcindia.com, Email: secretariat@ongc.co.in OIL AND NATURAL GAS CORPORATION LIMITED CIN: L74899DL1993GOI054155 Registered Office: Plot No. 5A-5B, Nelson Mandela Marg, Vasant Kunj, New Delhi - 110070 Website: www.ongcindia.com; email: secretariat@ongc.co.in; Tel: 011-26754073/4085 Addendum to the Notice of 33rd Annual General Meeting dated 07.08.2026 This has reference to the Notice of 33rd Annual General Meeting EXPLANATORY STATEMENT PURSUANT TO SECTION (“AGM”) of OIL AND NATURAL GAS CORPORATION LIMITED 102 OF THE COMPANIES ACT, 2013 IN RESPECT OF (hereinafter referred to as ONGC/ Company) sent on 07.08.2026 SPECIAL BUSINESS ITEM: to the Members. In this regard, the following additional business Item No. 11: Appointment of Dr. Archna Thakur (DIN: 11719170) item is hereby included in the Notice of AGM and shall be deemed to form an integral part of the Notice of AGM. All other terms, as an Independent Director of the Company. conditions and contents of the Notice of AGM shall remain Ministry of Petroleum & Natural Gas, Government of India vide its unchanged. letter no. CA-31033/1/2026-CA-PNG (55708) dated 12.08.2026 has SPECIAL BUSINESS: conveyed the appointment of Dr. Archna Thakur as Non-Official - Independent Director on the Board of Company for a period of Insertion of a new item as Item No. 11 in the Original Notice three (03) years with effect from the date of letter, or until further ITEM NO. 11 orders, whichever is earlier. Appointment of Dr. Archna Thakur (DIN: 11719170) as an Dr. Archna Thakur (DIN: 11719170) was appointed as an Additional Independent Director of the Company Director (Independent Director) by the Board of Directors of To consider and if thought fit, to pass with or without modification(s), the Company w e f. 13.08.2026 upto the date of ensuing Annual the following Resolution as a SPECIAL RESOLUTION: General Meeting. “RESOLVED THAT pursuant to provisions of Section 149, 152 The Company has also received a declaration of independence and other applicable provisions of the Companies Act, 2013 from Dr. Archna Thakur. Dr. Archna Thakur fulfils the conditions as and Regulation 17, 25(2A) and other applicable provisions of set out in Section 149 and Regulation 16(1)(b) of the SEBI (LODR) the SEBI (LODR) Regulations, 2015 if any, Dr. Archna Thakur Regulations, 2015. She is eligible for appointment as Director (DIN: 11719170) who was appointed as an Additional Director and not disqualified in terms of provisions of Section 164 of the (Non-official Independent Director) of the Company with effect Companies Act, 2013 and also not debarred from holding the from 13.08.2026 in terms of Section 161(1) of the Companies office by virtue of any order passed by SEBI or any other authority. Act, 2013 in terms of Letter No. CA-31033/1/2026-CA-PNG (55708) dated 12.08.2026 issued by the Ministry of Petroleum Pursuant to Section 160 of the Companies Act, 2013, the & Natural Gas, Govt. of India and holds office upto the date Company has received a notice from a Member who proposed her of Annual General Meeting and in respect of whom a notice candidature for Directorship. has been received in writing from a member proposing her Information in respect of Dr. Archna Thakur as per requirements candidature for Directorship, be and is hereby appointed as Non- under Secretarial Standards – 2 and Regulation 36 of SEBI (LODR) official Independent Director of the Company, for a period up-to Regulations, 2015 is enclosed at Annexure – A. Dr. Archna Thakur 11.08.2029 or until further orders, whichever is earlier, and she is interested in this resolution to the extent of her appointment as shall not be liable to retire by rotation.” an Independent Director. By Order of the Board of Directors None of the Directors or Key Managerial Personnel of the Company or their relatives is concerned or interested, financially Sd/- or otherwise, in the resolution set out at Item No. 11 of the Notice. Date: 20.08.2026 (Shashi Bhushan Singh) Place: New Delhi Company Secretary The Board recommends the Special Resolution as set out at Item (M. No.: ACS 15194) No. 11 for the approval of Members. Annexure-A BRIEF DETAILS OF DIRECTOR SEEKING APPOINTMENT/RE-APPOINTMENT AT THE 33rd ANNUAL GENERAL MEETING IN TERMS OF REGULATION 36(3) OF SEBI (LODR) REGULATIONS, 2015 AND SECRETARIAL STANDARD-2 ISSUED BY THE INSTITUTE OF COMPANY SECRETARIES OF INDIA 1. Details about Dr. Archna Thakur S. No. Particulars Details 1. DIN 11719170 2. Date of Birth & Age 05.04.1975, 51 years 3. Date of first appointment on the Board 13.08.2026 4. Qualifications Doctorate in International Politics from Himachal Pradesh University and Gold Medalist in Master’s in political science. 5. Brief Resume and Experience in specific Functional Dr. Archna Thakur has over 20 years of experience in Academics, Areas Management, Administration and Social Services. She has been associated with several NGOs and has actively contributed to initiatives focused on women’s empowerment, social awareness, community welfare, and social development. 6. Terms & Conditions of Re-appointment including As may be decided by the Government of India from time to time. Remuneration She is entitled for sitting fees for attending Meetings of the Board and Committees within the limit prescribed under the Companies Act,2013. 7. Shareholding Nil 8. Names of entities in which the person holds the Oil and Natural Gas Corporation Limited directorship^ 9. Cha [Showing first 8,000 characters — download PDF for full document]