Explanation:

The world's lightest satellite, made by Indian students, was successfully placed in orbit by a rocket launched by the ISRO. It's on the house - not a single rupee is being charged by the Indian Space Research Organisation (ISRO) for the task. The satellite designed and built by students who work with a private organisation called "Space Kidz India" in Chennai weighs less than a wooden chair at only 1.26 kg.The Kalamsat-V2 is the lightest satellite in the world, the ISRO said, launch from the Satish Dhawan Space Centre in Sriharikota also marks another milestone - it's the first satellite designed and built by an Indian private entity and Space Kidz India to be launched by ISRO.