Certificate under SEBI (Depositories and Participants) Regulations, 2018

castrol.co.in 6 July 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, C-1, Block G, Dalal Street, Bandra Kurla Complex, Bandra East, Mumbai – 400 001 Mumbai – 400 051 Scrip Code: 500870 Scrip Symbol: CASTROLIND Dear Sir/Madam, Sub.: Certificate pursuant to Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018, for the quarter ended 30 June 2026 We enclose herewith certificate dated 3 July 2026 issued by KFin Technologies Limited, Registrar and Transfer Agent of the Company, confirming compliance with Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018, for the quarter ended 30 June 2026. You are requested to take the same on record. Thank You. Yours faithfully, For Castrol India Limited Hemangi Ghag Company Secretary & Compliance Officer Encl.: A/a Registered address: Castrol India Limited CIN: L23200MH1979PLC021359 Technopolis Knowledge Park, Mahakali Caves Road, Andheri (East), Mumbai – 400093 Tel: +91 22 7177 7111 / Fax: +91 22 6698 4101 Customer Service Toll Free No: 1800222100 / 18002098100 KFlN/CAlL/JUNE/2026 Date: 03/07/2026 The Company Secretary Castrol India Limited Technopolis Knowledge Park Mahakali Caves Road P. O Box No. 19411 Chakala, Andheri (East) Mumbai-400093 Sub: Confirmation Certificate in the matter of Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018 Dear Sir/Madam, Pursuant to Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018, we hereby confirm that the securities received from the depository participants for dematerialization during 01stApril,2026to quarter ended 30thJune, 2026, were confirmed (accepted / rejected) to the depositories by us and the securities comprised in the said certificates have been listed on stock exchanges where the earlier issued securities are listed. We also hereby confirm that the security certificates received for dematerialization have been mutilated and cancelled after due verification by the depository participant and the name of the depositories have been substituted in register of members as the registered owner within the prescribed timelines. Request to kindly take the above on record. Thanking You Yours faithfully, For KFin Technologies Limited. C. Shobha Anand Vice President