A few months later, the Radio Club of Calcutta and Madras Presidency Radio Club were born and began a few broadcasts. These radio activities preceded the setting up of All India Radio (AIR) by about a dozen years. The basic science of radio telegraphy that preceded radio broadcasting was proposed by Nikola Tesla in the 1880s. Tesla built on the discovery of electro-magnetic waves (including radio waves) by Heinrich Hertz and on the theory of electro-magnetic radiation developed by James Maxwell. Television and the internet have taken a bite out of the relevance of radio in India today.

Source: India Today December 19, 2023 01:12 UTC