The 29-hour countdown for the launch of GSLV-D5, powered by indigenous cryogenic upper stage and carrying 
communication satellite GSAT-14, from Sriharikota in Andhra Pradesh has begun at 11.50 AM on Sunday.
It will be launched at 4:50 PM on Monday.
Now, India is all set to join an elite groups of nations with indigenous cryogenic rocket engine technology, with the launch of the advanced communication satellite GSAT-14 on board, to its orbit.
The launch time had earlier been fixed at 4.50 PM for the Geosynchronous Satellite Launch Vehicle (GSLV) D-5 from the second launch pad of Satish Dhawan Space Centre in Sriharikota, in Andhra Pradesh.
This will be the second attempt by Indian Space Research Organisation to flight test the indigenous cryogenic stage after the failure of previous missions of GSLV-D3 on 15th April 2010.
The next GSLV flight with a Russian cryogenic stage also failed in December 2010.
After the unsuccessful launch in April 2010, the failure analysis committee had concluded that the thrust build up did not progress as expected due to non-availability of liquid hydrogen supply to the thrust chamber of the main engine.
This failure was attributed to anomalous stopping of Fuel Booster Turbo Pump (FBTP).
In the last three years, ISRO conducted extensive failure analysis studies and reviews. Cryo stage FBTP was modified as per GSLV-D3 failure analysis committee recommendations and qualification tests carried out.