The PSLV-C17 will put in orbit communication satellite GSAT-12, which weighs 1,410 kg. It is a more powerful version of the standard PSLV, called PSLV-XL that will put the satellite into geosynchronous orbit orbit after a 20-minute flight.The four-stage PSLV was built by the VSSC.

This is the second time that a powerful PSLV-XL version will lift off from the second launch pad at Sriharikota. It was earlier used to put Chandrayaan-1 into orbit on October 22, 2008. While the six strap-on booster motors of the standard version of the PSLV carry a total of nine tonnes of solid propellants, the strap-on motors in the XL version are powered by a total of 12 tonnes of fuel.

The GSAT-12, with 12 extended C-band transponders, will be used for tele-medicine, tele-education, telephone and various other communication purposes.
This is the 19th PSLV mission, out of which 17 have been successful in a row. 

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