From banking technology and renewable energy to defence, aerospace and healthcare, key corporate announcements by seven companies are expected to influence investor sentiment, making these stocks among the top counters to watch during Friday’s trading session.

Infosys Finacle’s Finacle Digital Banking Solution Suite on Microsoft Azure has been selected by Investec, a leading international bank and wealth manager, to modernise its banking operations across South Africa, the UK, Mauritius, and the Channel Islands. Infosys Finacle is part of EdgeVerve Systems, a wholly owned subsidiary of Infosys. As part of this multi-country, large-scale transformation program, Investec will migrate from its legacy platforms to Finacle, establishing a future-ready technology foundation aligned with the next phase of its growth strategy.GRSE wins ₹1,032-crore ONGC vessel contractGarden Reach Shipbuilders & Engineers has received the Notification of Award (NOA) for ‘Construction of Four Platform Supply Vessels’ for Oil and Natural Gas Corporation (ONGC) at a total value of Rs 1,032.07 crore, including GST. The said project is to be completed within 48 months from the date of NOA.Mahindra forms aerospace manufacturing subsidiaryMahindra Group on Thursday said it has incorporated a step-down subsidiary, Novavayu Aerospace Ltd (NAL), for aircraft manufacturing, aerospace products and related activities. “NAL is incorporated as a wholly-owned subsidiary of Mahindra Defence Systems Ltd. MDSL is a wholly-owned subsidiary of Mahindra Advanced Technologies Ltd, which in turn is a wholly-owned subsidiary of the company. Accordingly, NAL is a step-down subsidiary of the company,” M&M Ltd said in a regulatory filing.Tata Power begins ₹5,750-crore renewable energy projectTata Power Renewable Energy Ltd, a subsidiary of Tata Power, started work on its 800 MW clean energy project, valued at Rs 5,750 crore, in Andhra Pradesh on Thursday, the company said in a statement. The project comprises 400 MW of wind power capacity (at Kanekallu, Ananthapuram) and 400 MW solar power capacity (at Pattikonda, Kurnool). The project has secured 800 MW Inter-State Transmission System (ISTS) connectivity at the Ananthapuram II & Kurnool-4 CTUIL substations, enabling efficient evacuation of renewable power through the national transmission network. The ISTS connectivity provides a robust transmission network for efficient evacuation of power, it said.Astra Microwave bags ₹2,205-crore HAL radar orderAstra Microwave Products has secured an order worth ₹2,205.23 crore from Hindustan Aeronautics Ltd (HAL) for the supply of equipment for the Uttam Radar programme, the company said in an exchange filing on Thursday. The order has to be executed over five years.Navin Fluorine partners with DRDONavin Fluorine International Ltd has entered into a strategic collaboration with the Defence Research and Development Organisation (DRDO), Ministry of Defence, for bulk indigenous manufacturing of Sodium Borohydride. Under the project titled ‘Indigenous Manufacturing of Sodium Borohydride Chemical in Bulk’, the company will locally manufacture this critical defence material in large quantities with grant-in-aid and technological support from DRDO.Fischer Medical secures approval for wound care technologyFischer Medical Ventures has secured commercial CDSCO import approval for Spincare, representing India’s first regulatory clearance for a portable electrospun wound care system. The approval marks the transition of the innovative spray-on regenerative skin technology from non-commercial trials to full market launch in India. Additionally, the company is preparing to capitalise on exclusive distribution rights across both India and Southeast Asia.Published on July 31, 2026