NISAR satellite is manufactured jointly by Indian Space Research Organisation and :

The NISAR (NASA-ISRO Synthetic Aperture Radar) satellite is a groundbreaking Earth observation mission developed jointly by the Indian Space Research Organisation (ISRO) and the National Aeronautics and Space Administration (NASA) [1][2]. This collaboration represents a significant milestone in U.S.-India space cooperation. The satellite is equipped with dual-frequency radar instruments: NASA provided the L-band synthetic aperture radar (SAR), while ISRO provided the S-band SAR, the spacecraft bus, and the launch vehicle [1]. NISAR is designed to provide high-resolution measurements of Earth's surface changes, including tectonic shifts, glacier movements, and forest disturbances, regardless of weather or lighting conditions [1]. The mission aims to enhance global understanding of natural hazards and climate change by imaging land and ice-covered surfaces every 12 days [1].

Sources

1. [1] https://bhoonidhi.nrsc.gov.in/NISAR/
2. [2] https://www.bbc.com/news/articles/cy98jnreqvvo