As attached

Prostarm/Secretarial/2026-27/62 September 22, 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: Intimation regarding Commencement of Operations of Company Units Ref: Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements Regulations), 2015 (the “SEBI Listing Regulations”) Dear Sir/Madam, Pursuant to Regulation 30 of the SEBI Listing Regulations, and in continuation of our earlier intimations bearing reference nos. Prostarm/Secretarial/2026-27/03 dated April 07, 2026, Prostarm/Secretarial/2026 -27/38 dated July 15, 2026 and Prostarm/Secretarial/2026-27/44 dated August 12, 2026 and other related intimations, we wish to inform you that the Company has completed the installation of plant and machinery at the respective facilities and undertaken other requisite activities in connection with the relocation, commissioning and commencement of operations. Following completion of the installation and relocation activities, the Company undertook trial runs and commissioning activities at the respective facilities. Upon completion of the aforesaid activities, the Company shall commence operations at the respective facilities as per the schedule set out below: Sr. Facility / Operations Location of Units Date of No. Commencement 1. 1.2 GWh BESS Manufacturing Facility Jhajjar, Haryana September 25, 2026 2. New UPS Manufacturing Facility and Bakrol, Gujarat September 25, 2026 Lithium Battery Manufacturing Operations 3. Servo Stabilizer and Isolation Mahape, Maharashtra September 25, 2026 Transformers business operations Kindly take the above information on record. Thanking you, For Prostarm Info Systems Limited Sachin Gupta Company Secretary and Compliance Officer Membership No: F12500