Effective on January 1, 2021, the airwaves in India will not be the same again, as All India Radio is rebranding all its Home Services on mediumwave and FM.
Each State/ Union Territory (except Jammu & Kashmir and Chandigarh) will have a separate network of its own. The programs will be originated by the station in the capital city of each state which will be relayed by all other stations in that particular state.
Now many AIR stations broadcast their own programs with occasional relays from New Delhi / State capital etc. This system will end on 31 Dec 2020.
There will also be nine new regional channels for entertainment, in addition to the Vividh Bharati Service.
It may be noted that this system is already followed by Doordarshan TV.
Please see more details at AIR rebranding its Home services from 1 Jan 2021
https://www.deccanherald.com/national/all-india-radio-all-set-for-rebranding-streamlining-of-services-(Jose Jacob, VU2JOS/DX India)