NSB BPO Solutions Limited has informed the exchange regarding the Trading Window Closure pursuant to SEBI (Prohibition of Insider Trading) Regulations, 2015.

To, Date: 26.09.2026 Head of the Department, Department of Listing Operation, BSE Limited Phiroze Jeejeebhoy Towers, Dalal Street, Mumbai 400001 SCRIP Code: 544571 ISIN: INE0SLP01017 Subject: Intimation for Closure of Trading Window w.e.f. 01st October 2026 Dear Sir/Madam, Pursuant to the provisions of the SEBI (Prohibition of Insider Trading) Regulations, 2015, as amended from time to time, and in terms of the Company’s Code of Conduct for regulating, monitoring and reporting of trading by Designated Persons, we hereby inform that the “Trading Window” for dealing in the securities of the Company shall remain closed for all Designated Persons and their immediate relatives from 01st October, 2026 till the expiry of 48 hours after the declaration of the Unaudited Financial Results for the Half Year ended on 30th September, 2026 by the Board of the Company. Further, the Company has complied with the requirements of SEBI Circular No. SEBI/HO/ISD/ISD-PoD- 2/P/CIR/2023/124 dated July 19, 2023 and SEBI Circular No. SEBI/HO/ISD/ISD-PoD-2/P/CIR/2025/55 dated April 21, 2025, with respect to the framework for restricting trading by Designated Persons by way of freezing of PAN at the security level. The date of the Board Meeting of the Company for declaration of Unaudited Financial Results for the half year ending 30th September, 2026 will be intimated in due course. Kindly take the above information on record. For NSB BPO SOLUTIONS LIMITED ANJALI SHUKLA COMPANY SECRETARY