Bhubaneswar (Odisha), Sept. 21 -- : ISRO chief K Sivan on Saturday said that the first Indian astronaut will be sent to space under the 'Gaganyaan' mission for which the work is already underway.

He said the mission is "extremely important" for India as it will give a thrust to the country's science and technology capabilities.

"There are some questions. In what way Gaganyaan is going to be useful? Gaganyaan is extremely important for India as it will boost the science and technology capability of the country," he said.

"By December 2020, we are going to have the first unmanned mission of human spacecraft," added Sivan, while addressing the 8th convocation of IIT Bhubaneswar.

"The second unmanned human spacecraft, we are targeting for J...