India launches 5th navigation satellite IRNSS-1E

Ques: Through which Polar Satellite Launch Vehicle the Indian Space Research Organization (ISRO) on 20 January 2016 successfully launched the Indian Regional Navigational Satellite System (IRNSS) 1-E satellite? (a) PSLV-C31(b) PSLV-C30(c) PSLV-C24(d) PSLV-C28 Ans (a) Related facts: On 20 January 2016, ISRO’s Polar Satellite Launch Vehicle, PSLV-C31, successfully launched the 1425