Please find attached the Certificate received from Regulation 74(5) of SEBI (DP) Regulations, 2018.

Ref: DEL/SEC/2026/10/01 Date: October 07, 2026 The Corporate Relationship Department BSE Limited Phiroze Jeejeebhoy Towers Dalal Street, Fort Mumbai – 400 001 BSE Scrip Code: 504908 Dear Sir/ Madam, Sub: Confirmation Certificate in the matter of Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants Regulations, 2018 Please find enclosed herewith Confirmation Certificate for quarter ended September 30, 2026 under Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018 issued by MUFG Intime India Private Limited (formerly known as Link lntime India Private Limited), Registrar & Share Transfer Agent of the Company. Kindly take the same on records. Thanking you. For Duncan Engineering Limited Shanu Gupta Company Secretary and Compliance Officer Encl: as above MUFG Intime India Private Limited (Formerly Link Intime India Private Limited) CIN: U67190MH1999PTC118368 Block No 202, 2nd Floor, Akshay Complex, Off Dhole Patil Road, Pune - 411001 Tel : +91 20 26161629 Website: https://in.mpms.mufg.com SEBI Registration no.: INR000004058 06/10/2026 Duncan Engineering Limited F-33, Ranjangaon , M I D C Koregaon, Tal. Shirur, Pune - 412209 Subject: Confirmation Certificate in the matter of Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018. Dear Sir/Madam, In reference to the above captioned regulation, we hereby confirm that the securities received from the depository participants for dematerialisation during the quarter ended 30th September 2026, were confirmed (accepted/rejected) to the depositories by us and that securities comprised in the said certificates have been listed on the stock exchanges where the earlier issued securities are listed. We hereby also confirm that the security certificates received for dematerialisation have been confirmed/rejected and the security certificates received were mutilated and cancelled after due verification by the depository participant and the name of the depositories have been substituted in the register of members as the registered owner within the prescribed timelines. We request you to kindly take note of the above in your records. Thanking You, Yours faithfully, For MUFG Intime India Private Limited (Formerly Link Intime India Private Limited) Ashok Shetty Vice President – Corporate Registry Part of MUFG Pension & Market Services C-101, Embassy 247, L. B. S. Marg, Vikhroli (West), Mumbai - 400 083. Tel. : +91 22 4918 6000.