Final answer:
During the war, Nazrul's songs were most likely aired by Radio stations in India, supporting the Indian independence movement.
Step-by-step explanation:
During the war, Nazrul's songs were aired by Radio stations in India, amongst other platforms. Kazi Nazrul Islam, often called the 'rebel poet,' wrote songs that inspired Indian nationalism and voiced strong opposition against British colonial rule during the period of the Indian independence movement. Radio emerged as a crucial medium for such expressions and propaganda on both sides during the war. While the British used it for morale, the colonies, including India, found it a medium to stoke the fires of nationalism. Specifically, underground radio stations and nationalist stations would have served to broadcast the patriotic and revolutionary content of Nazrul's work. This refusal to succumb to British pressure was in line with the growing nationalist sentiment in India, as evidenced by movements like the 'Quit India' campaign led by the Indian National Congress.