Today I learned: the All India Radio signature tune was composed by Walter Kaufmann, Czech refugee to India, in 1936.
https://qz.com/287319/remembering-the-jewish-refugee-who-composed-the-all-india-radio-caller-tune/
Kaufmann later moved to the US, and served as a Distinguished Professor at Indiana University Jacobs School of Music during 1975-1984. IU Press published some of his books: "The ragas of South India", "The Ragas of South India", and "Musical Notations of the Orient".
https://archive.org/search.php?query=creator%3A%22Kaufmann%2C+Walter%2C+1907-1984%22
The tune in question: