Bharat Electronics Ltd (BEL) is a manufacturer and supplier of electronic products. The company offers its products and services to the aerospace and defense sector. It offers its products and services under the Defense, Non-Defense, Software Services, and Electronic Manufacturing Services categories.

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R&D arm of the company strives to develop new products with cutting-edge technology modules. It has three-tier R&D structure, including the Central Research Laboratory (CRL), Product Development and Innovation Centre (PD&IC) and Development and Engineering (D&E). The company's R&D team also collaborates with DRDO, ISRO, CSIR, other research laboratories, national and international academia, research institutes, OEMs/industry, experts/consultants, MSMEs and start-ups. As of March 2025, BEL granted 80 patents to which new total stands at 288, and filled 151 new IPR applications, including 81 patents in Communications, Artificial Intelligence, Radars, Antennae, Embedded Systems, Software and Command and Control Systems domains. In FY2025, the company incurred expenses of INR14,720 million on R&D, which as a percentage of revenue, stood at 6.2%.