Explanation:

• Indian Space Research Organisation  has planned to launch a new satellite series called “Indian Data Relay Satellite System (IDRSS)” for seamless communication for India’s first manned space mission 'Gaganyaan', which have a schedule to take off in 2022.
• It consists of 2 satellites, which will be deployed in phases.
• IDRSS satellites of the 2000 kg class would be launched on the Geosynchronous Satellite Launch Vehicle (GSLV) launcher to geostationary orbits around 36,000 km away.
• The 1st satellite to launch by the end of 2020 to track and be constantly in touch with Indian satellites, mainly with those in low-earth orbits (LEO).
• The 2nd IDRSS satellite will be launched in 2021, which will set the platform for the main mission launch in 2022.