India is taking steps to strengthen its satellite infrastructure on two fronts: expanding its indigenous navigation satellite system and launching a major Earth observation mission in collaboration with the United States.
Restoring NavIC: Three New Navigation Satellites by 2026
According to a recent post from Indian Express, the Indian Space Research Organisation (ISRO) will launch three additional satellites for its Indian Regional Navigation Satellite System (IRNSS) by 2026. The first of these, NVS-03, is slated for launch by the end of this year, with NVS-04 and NVS-05 to follow at six-month intervals. The announcement was made in a written response to Parliament by Union Minister of State for Space Dr. Jitendra Singh.
IRNSS, also known operationally as NavIC (Navigation with Indian Constellation), was originally envisioned as a seven-satellite constellation providing navigation coverage over India and a 1,500 km radius around it. While 11 satellites have been launched to date, only four are currently operational. Two satellites failed to reach their intended orbits, and one, NVS-02, launched in January during ISRO’s 100th mission, suffered a technical malfunction during orbit-raising and could not be placed in its designated slot.
The new batch of satellites will help restore full functionality to the NavIC system, which provides regional positioning services similar to GPS and Galileo but tailored for Indian strategic and civilian use. The move comes amid broader efforts to reduce reliance on foreign navigation systems and enhance resilience for national security, transportation, and disaster response.
NISAR: A Milestone in India-US Space Cooperation
Meanwhile, India is also preparing for the upcoming launch of the NASA-ISRO Synthetic Aperture Radar (NISAR) mission, scheduled for July 30 at 17:40 IST from the Satish Dhawan Space Centre in Sriharikota. As reported by DD News, this joint initiative between NASA and ISRO is a milestone in international Earth observation cooperation and space technology transfer.
NISAR is the first Earth observation satellite co-developed by the two agencies, with a combined investment exceeding $1.5 billion. The 2,392-kg satellite will be deployed into a sun-synchronous orbit aboard the GSLV-F16 rocket—the first time India’s GSLV has been used for this orbital configuration. The satellite’s payload includes dual-frequency synthetic aperture radars: an L-band SAR supplied by NASA and an S-band SAR developed by ISRO, mounted on a 12-meter deployable antenna.
The mission will provide global revisit data every 12 days, enabling frequent observation of Earth’s land and ice surfaces. With an open-data policy, NISAR will make its data publicly available within 24 to 48 hours, and in near-real time during emergencies. This capability is expected to support applications in climate monitoring, agriculture, and disaster management across both developed and developing countries.
Describing the launch as a “defining moment in India-US space cooperation,” Dr. Jitendra Singh emphasized the broader impact of the mission. “NISAR will not only serve India and the United States but will also provide critical data for countries around the world,” he stated. The initiative is seen as a tangible example of India’s growing participation in global science efforts and its evolving role as a technology partner to the international community.
