India has released version 1.0 of the Indian Radio Software Architecture (IRSA), introducing new standards aimed at improving interoperability across its military communications.
The system was developed by the Defence Research and Development Organisation (DRDO), in collaboration with the Integrated Defence Staff and India’s three armed services.
IRSA defines common software specifications for Software Defined Radios (SDR), including standardized interfaces, application programming interfaces, execution environments, and mechanisms for waveform portability.
The project aims to support different military branches to communicate seamlessly using compatible systems and software.
The announcement was made during a national workshop held at DRDO Bhawan in New Delhi.
During the event, project partners discussed IRSA’s development and technical aspects, as well as plans for future collaboration among the armed forces, research institutions, and industry partners.
“The vision is to position IRSA not just as a national standard, but as a global benchmark — enabling India to shape the future of SDR technology and export IRSA-compliant solutions to friendly nations,” stated the Indian government.
Radio Interoperability
The initiative reflects New Delhi’s drive to develop indigenous defense communication technologies.
Currently, Indian radio systems rely on several dedicated waveforms across platforms from different manufacturers, with customized components limiting interoperability.
IRSA addresses these constraints by introducing a technology-neutral and scalable architecture aligned with international standards.
It enables integration across different systems without vendor-specific dependencies, improving flexibility and long-term sustainability.
