ISRO on Thursday commenced a revised 8.5-hour countdown for the launch of the European Space Agency's Proba-3 mission, reported PTI.

The Bengaluru-headquartered space agency had originally planned to launch the European Space Agency's (ESA) Proba-3 at 4.08 pm on Wednesday from the spaceport. However, minutes before the lift-off, following the request from the European Space Agency, ISRO rescheduled the launch of PSLV-C59/PROBA-3 to December 5, 4.04 pm, reported PTI.