It should be noted that India had to develop its own satellite navigation system as during the Kargil war of 1999, United States did not gave us required GPS feed of the Kashmir valley. ISRO started working to build Indian satnav. Under leadership of the-then chairman A S Kiran Kumar during 2015-18 NavIC received significant progress and acceleration.
For the first time, an indigenously developed rubidium atomic clock was flown in NVS-01. The space-qualified rubidium atomic clock, indigenously developed by Space Applications Centre, Ahmedabad is an important technology which only a handful of countries possess.
The satellite is powered by two solar arrays, capable of generating power up to 2.4kW and a lithium-ion battery supporting payload and bus load during eclipse. The mission life of NVS-01 is expected to be better than 12 years.