At the age of 43 (in 1942) he began suffering from an unknown disease, losing his voice and memory. Nazrul wrote and composed music for his nearly 4,000 songs (including gramophone records), collectively known as Nazrul geeti (Nazrul songs), which are widely popular today. Throughout his career, Nazrul wrote short stories, novels, and essays but is best-known for his poems, in which he pioneered new forms such as Bengali ghazals. Nazrul's writings explore themes such as love, freedom, and revolution he opposed all bigotry, including religious and gender. Exploring the life and conditions of the downtrodden masses of India, Nazrul worked for their emancipation. While in prison, Nazrul wrote the 'Rajbandir Jabanbandi' ('Deposition of a Political Prisoner').

His impassioned activism in the Indian independence movement often led to his imprisonment by British authorities. He assailed the British Raj in India and preached revolution through his poetic works, such as 'Bidrohi' ('The Rebel') and 'Bhangar Gaan' ('The Song of Destruction'), as well as his publication 'Dhumketu' ('The Comet'). After serving in the British Indian Army, Nazrul established himself as a journalist in Kolkata (then Calcutta). He learned of poetry, drama, and literature while working with theatrical groups. Born into a poor Muslim family, Nazrul received religious education and worked as a muezzin at a local mosque. Accomplishing a large body of acclaimed works through his life, Nazrul is officially recognised as the national poet of Bangladesh and commemorated in India. His poetry and nationalist activism earned him the popular title of Bidrohi Kobi (Rebel Poet). Kazi Nazrul Islam (-29 August 1976) was a Bengali poet, musician, revolutionary, and philosopher who pioneered poetic works espousing intense spiritual rebellion against orthodoxy and oppression. Walt Whitmaner Nirbachita Kabita : A bilingual collection of selected poems by Walt Whitman (in Bengali and English) (2nd ed.). Kazi Nazrul Islam The Voice of Poetry and the Struggle for Human Wholeness. 'Kazi Nazrul Islam: His Revolt and Love'.

^ 'A tribute to Bengal's rebel and revolution'.Flaming Flower: Poets' Response to the Emergence of Bangladesh (1st ed.).

Bidrohi Kobita