Sriharikota: The 20-hour countdown began for the launch of Chandrayaan-2 from Satish Dhawan Space Centre at Sriharikota in Nellore district of Andhra Pradesh. India's indigenous moon mission is all set to be launched at 2.43 pm, today (July 22).

ISRO had Tweeted: The launch countdown of #GSLVMkIII-M1/#Chandrayaan2 commenced today at 1843 Hrs IST. The launch is scheduled at 1443 Hrs IST on July 22nd.

After the glitches were rectified, ISRO successfully completed the launch rehearsal of the Chandrayaan-2 mission on Saturday (July 20).

Previously Chandrayaan-2 launch scheduled on July 15 had to be aborted due to a technical snag. Indian Space Research Organisation (ISRO) chief K Sivan has now confirmed that all the glitches have been rectified.

Chandrayaan-2 is scheduled for 15 crucial activities.

“Chandrayaan-2 will land on the South Pole on the Moon on September 6 or 7. It will be helpful in a lot of scientific testing and scientists across and beyond India are looking forward to the launch,” said ISRO chief K Sivan.

Chandrayaan-2 is expected to set foot on the Moon where no mission has ever reached. The spacecraft consists of an orbiter, a lander, and a rover together referred to as "composite body." The probe's total mass is 3.8 ton.