ONGC Appoints Four New Statutory Auditors for FY27

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Name of the New Audit Firms:

1. M/s T R Chadha & Co LLP

2. M/s P K F Sridhar & Santhanam LLP

3. M/s Suri & Co

4. M/s A R & Co

Firm Registration Numbers (FRN):

Term of Appointment and Validity:

Appointed for the Financial Year 2026-27.

Interim Appointment or Subject to Shareholder Approval:

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Qualifications or Professional Standing:

M/s T R Chadha & Co LLP:

Founded in 1946 (over 80 years old).
Registered office at B-30, Connaught Place, Kuthiala Building, New Delhi - 110001 with 10 other full-fledged offices across India.
Employs more than 1000 people including 22 Full-Time FCA partners and over 160 Qualified Chartered Accountants.
Extensive experience auditing large Central Public Sector Undertakings (PSUs) including Indian Oil Corporation Ltd, Bharat Petroleum Corporation Limited, NTPC Limited, Steel Authority of India Limited, Power Grid Corporation of India Limited, and REC Limited.
Central Statutory auditor for banks including State Bank of India, Canara Bank, Bank of Baroda, and Standard Chartered Bank.
Registered with C&AG, RBI, SEBI, IRDAI, PFRDA, and PCAOB (USA).
Certified with ICAI's Peer Review & AQMM Maturity Level 4.

M/s P K F Sridhar & Santhanam LLP:

Founded in 1978 (legacy of about 50 years).
Supported by 28 Partners and over 1,000 professionals.
Has delivered engagements across 59 countries.
Awarded Level 4 AQMM Rating by ICAI.
Provides services including Statutory Audit, Internal Audit, Risk Advisory, Forensic Services, Tax Advisory, Corporate Finance, Due Diligence, ESG Assurance, Compliance Reviews, and Digital Audit Solutions.

M/s Suri & Co:

Established in 1939 (over 85 years old).
Employs 320+ professionals and 13 full-time CA Partners across 4 states and 8 centres.
Offers Statutory, IFRS Convergence, Forensic, Tax, and GST Audits, alongside Risk Management and Advisory services.
BFSI expertise includes 50+ years of bank branch audit experience, central statutory audits of 14 public sector and 4 private banks, audits of 3 insurance companies, and audits of NBFCs and mutual fund asset management companies.
Has 53 years of statutory audit experience of Public Sector Undertakings (PSUs).
Empaneled with CAG, RBI, Audit Bureau of Circulations, and PCAOB.
Founding member of the K S L Network, a multidisciplinary Indian CA network with 900+ professionals and 47 partners.

M/s A R & Co:

Established in 1981 (experience of more than 44 years).
Head office at A-403, Gayatri Apartment, Airlines Group Housing Society, Plot No.27, Sector-10, Dwaraka, New Delhi-110075.
Experience in large government audits for Maharatnas and Navratnas PSUs appointed by C&AG.
Vast experience in Power Sector and Oil & Gas sector, having audited several companies in the industry.
Also experienced in Banking and NBFC field, having been involved with almost all Public Sector Banks and several Private Sector Banks.
Empaneled with RBI, IBA, SFIO, Income Tax, GST, CBI, and NIA.
Peer reviewed by ICAI, valid up to 31.12.2028.

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The disclosure is made pursuant to Regulation 30 read with Schedule III of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015.

A letter was received from the office of Comptroller & Auditor General of India (C&AG) on 7th September 2026 conveying the appointment.

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Brief profiles of all four appointed audit firms are enclosed as Annexure-A to the disclosure.