Post Earnings Call-Audio Link Recording is enclosed.

5 August 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.: Recording of Post Earnings Call for 2Q FY 2026 Pursuant to Regulation 30 and 46 read with Para A of Part A of Schedule III to the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we hereby inform the exchanges that the recording of the Company's post earnings call with analysts/investors for discussing the unaudited financial results of the Company for the quarter and half year ended on 30 June 2026, held today i.e. Wednesday, 5 August 2026 from 12:15 p.m. IST to 1:00 p.m. IST is available on the website of the Company. The recording can be accessed on the following link: https://www.castrol.com/en_in/india/home/investors/information-for-shareholders.html under INVESTOR CALL DETAILS --- 2026 --- 2Q FY 2026 Kindly take the same on record. Thank You. Yours faithfully, For Castrol India Limited Hemangi Ghag Company Secretary & Compliance Officer