What is IRNSS (regional navigation satellite system)?

IRNSS provides accurate real-time situating and timing administrations. It covers India and a region extending 1,500 km (930 mi) around it. IRNSS is an independent territorial satellite route framework being created by Indian Space Research Organization. The IRNSS framework involves a space segment and a assist ground segment. The IRNSS constellation is expected to provide a position accuracy of better than 20 m over India and a region extending outside the Indian landmass to about 1,500 km.