New 'eye in the sky'! India's GPS gets a major upgrade tonight; 5 things to know about what ISRO's NVS-03

ISRO is scheduled to launch its GSLV-F18 rocket carrying the NVS-03 navigation satellite at 11:51 pm on October 30 from Sriharikota. The mission aims to strengthen India's NavIC network with an additional L1 navigation signal and improved timing capabilities through an indigenous atomic clock.