Bismillah Khan’s big break came in 1938. Bismillah Khan played shehnai on radio when All India Radio first began broadcasting in Lucknow. He quickly became a popular radio player. On August 15, 1947, he was the first Indian to greet the nation with his shehnai from the Red Fort.
Final Answer:
Hence, Bismillah Khan got his big break in 1938, with the establishment of All India Radio in Lucknow.