Question: What kind of media station did the broadcaster Turaga Janaki Rani work with for two decades, which is a station which uses the technology of radio waves to carry information by systematically modulating properties of electromagnetic energy waves transmitted through space?
Sentence (from "Turaga Janaki Rani"): Turaga Janaki Rani (August 31, 1936-October 15, 2014) was a broadcaster, social activist and a writer worked with All India Radio for two decades.
Relevant evidence: Yes