PSLV-C46 carrying earth observation satellite RISAT-2B launched, know what will it do

In a pre-dawn launch on Wednesday, Indian space agency ISRO scripted history by successfully launching earth observation satellite RISAT-2B that would enhance the country's surveillance capabilities among others. As the 25-hour countdown which began Tuesday concluded, the agency's trusted workhorse Polar Satellite Launch Vehicle (PSLV-C46) blasted off at 5.30 am from the first launch pad of the Satish Dhawan Space Centre here on its 48th mission, carrying the 615 kg satellite.