As attached

Prostarm/Secretarial/2026-27/65 September 23, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, C-1, Block G, Dalal Street, Mumbai – 400 001 Bandra Kurla Complex, Bandra (E), Mumbai – 400 051 Scrip Code: 544410 Scrip Symbol: PROSTARM Sub: Clarification regarding valuation methodology adopted for determination of fair value of Equity Shares pursuant to Preferential Issue. Ref: 1. NSE Letter Ref. No. NSE/LIST/56946 dated September 18, 2026 2. Preferential Issue of 2,898,717 Equity Shares of Rs. 10/- each Dear Sir/Madam, This is with reference to the observation raised by the National Stock Exchange of India Limited (“NSE”) with respect to the valuation methodology adopted for determination of the fair value of the Equity Shares proposed to be issued pursuant to the Preferential Issue. We hereby clarify that, as stated in the Valuation Report issued by the Registered Valuer, the fair value of the Equity Shares has been determined by adopting the Market Approach (Market Price Method). The Company further clarifies that the statement contained in the Notice convening the Annual General Meeting (“AGM Notice”) and the corrigendum thereto, which stated that: “The Registered Valuer has determined the fair value of the Equity Shares at Rs. 145.78 per Equity Share after considering the Cost Approach (Net Asset Value Method), Income Approach (DCF Method) and Market Approach (Market Price Method).” does not correctly reflect the valuation methodology actually adopted in the Valuation Report. Accordingly, the Company hereby confirms that the valuation for determination of the fair value of the Equity Shares at Rs. 145.78 per Equity Share was undertaken based on the Market Approach (Market Price Method), as set out in the Valuation Report, and not by adopting or considering the Cost Approach (Net Asset Value Method) and Income Approach (DCF Method). The reference to the Cost Approach (Net Asset Value Method), Income Approach (DCF Method) and Market Approach (Market Price Method) in the AGM Notice and corrigendum thereto was inadvertent and may kindly be read in accordance with the methodology actually adopted and reported by the Registered Valuer in the Valuation Report. The Company is making this clarification to ensure that the records of the Stock Exchanges accurately reflect the valuation methodology adopted for the Preferential Issue. We request you to kindly take the above clarification on record. The said intimation shall also be available on website of the Company at www.prostarm.com. Thanking you, For Prostarm Info Systems Limited Sachin Gupta Company Secretary and Compliance Officer Membership No: F12500