Disclosure of details of agreement under Regulation 30 and 30A of SEBI (Listing Obligations and Disclosure Requirements), Regulations, 2015 as amended.

castrol.co.in 2 November 2026 The 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: Disclosure of details of agreements under Regulations 30 and 30A of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended (“SEBI (LODR) Regulations”) Ref: The Company’s disclosure dated December 24, 2025, under Regulations 30 and 30A of the SEBI LODR Regulations Further to our disclosure dated December 24, 2025 under Regulations 30 and 30A read with paragraph 5A of Para A of Part A of Schedule III of the SEBI (LODR) Regulations, we wish to inform you that on October 30, 2026, BP p.l.c. (“bp”) (which immediately before Closing, was the ultimate holding company of Castrol Limited, the promoter of Castrol India Limited (“Castrol India”)) and Motion JVCo Limited (“Acquirer”), an entity that is part of Stonepeak Infrastructure Fund V (“Stonepeak”) completed the transactions contemplated under the agreement for the sale and purchase dated December 23, 2025 executed between bp and the Acquirer (as amended and/or amended and restated from time to time) (“SPA”, the foregoing being “Closing”). Pursuant to the consummation of the transactions under the SPA, the Acquirer has acquired 100% (one hundred per cent) of the equity share capital of Castrol Group Holdings Limited (“CGHL”), which in turn holds 100% (one hundred per cent) of the equity share capital of Castrol Limited. Castrol Limited is the promoter of Castrol India and holds 50,44,52,416 (fifty crore forty-four lakh fifty-two thousand four hundred and sixteen) equity shares of Castrol India constituting 51.00% (fifty one percent) of the equity share capital of Castrol India. Consequently, the Acquirer has indirectly acquired sole control of Castrol Limited, and thereby indirectly acquired: (a) the right to direct the exercise by Castrol Limited of the voting rights attached to its 50,44,52,416 (fifty crore forty-four lakh fifty two thousand four hundred and sixteen) equity shares in Castrol India (constituting 51.00% (fifty one percent) of the total voting rights); and (b) sole control over Castrol India. 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 Simultaneously with the acquisition of the entire equity share capital of CGHL by the Acquirer, the Acquirer has issued and allotted to BP Motion Holdings Limited (an indirect wholly owned subsidiary of bp) (“BPMH”), equity shares constituting 35% (thirty five percent) of the Acquirer’s equity share capital, resulting in BPMH holding a non-controlling interest in the Acquirer. Please refer to the Company’s disclosure dated December 24, 2025 for further details regarding the consequence of Closing on the other transaction documents. The Company received this information on 2 November 2026 at 12.44 p.m. IST. Kindly take the above information on your record. Thank you. Yours sincerely, For Castrol India Limited Hemangi Ghag Company Secretary & Compliance Officer 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