Kindly refer the attachment

Ref. No.: Sec/81/2026-27 August 20, 2026 BSE Limited The National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Dalal Exchange Plaza, C–1, Block G, Bandra Kurla Street, Fort, Mumbai – 400 001 Complex, Bandra (East), Mumbai – 400 051 Scrip Code: 543334 Trading Symbol: NUVOCO Scrip ID: NUVOCO Scrip Code: NVCL 28 and NVCL 77A Dear Sir/Madam, Sub: Disclosure under Regulations 30 and 51 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 (the “Listing Regulations”) – Intimation regarding Credit Rating assigned to Commercial Papers Pursuant to Regulations 30 and 51 of the Listing Regulations, we wish to inform you that Crisil Ratings Limited (“CRISIL”) has reaffirmed its rating of ‘Crisil A1+’ on Commercial Paper programme of the Company for the revised limit of Rs.1,100 crores, reduced from earlier rated limit of Rs.1,700 crores. Consequent to the reduction in the rated Commercial Paper limit by Rs.600 crores at the request of the Company, CRISIL has withdrawn the rating pertaining to such reduced portion, in accordance with its policy on withdrawal of ratings. There is no change in the ‘Crisil A1+’ rating on the continuing Commercial Paper programme of Rs.1,100 crores. Further, CRISIL has reaffirmed its ‘Crisil AA/Crisil AA-/Stable/Crisil A1+’ ratings on the existing bank facilities and debt instruments. The said information was received from CRISIL vide email dated August 19, 2026 at 09:15 p.m. We request you to take the above on record. Thanking you, Yours faithfully, For Nuvoco Vistas Corporation Limited Shruta Sanghavi SVP and Company Secretary Nuvoco Vistas Corp. Ltd. Registered Office: Equinox Business Park, Tower-3, East Wing, 4th Floor, Off. Bandra Kurla Complex, LBS Road, Kurla (West), Mumbai-400070 Tel: +91 (0) 22 67692500 / +91 (0) 22 67692525 | Fax: +91 (0) 22 67692572 | website: www.nuvoco.com | CIN- L26940MH1999PLC118229