“Countdown for the launch of PSLV-C51/Amazonia-1 mission commenced today at 8.54 am from Satish Dhawan Space Centre (SDSC) SHAR Sriharikota” ISRO tweeted. This would be one of the longest mission for the Space Agency that would last nearly two hours. This would be the first mission of this year and the first dedicated commercial mision for the newly formed NewSpace India Limited (NSIL). After the Launch Authorisation Board (LAB) cleared the mission the countdown commenced today during which propellant filling operations would be taken up in the 44.4 m tall four-stage vehicle. In this mission the fourth stage engine would be cut off and restarted twice..