why was he criticized?
His poetry is characterised by abundant use of rhetorical devices, which he employed to convey conviction and sensuousness.
Kazi Nazrul Islam
According to literary critic Serajul Islam Choudhury, Nazrul's poetry is characterised by abundant use of rhetorical devices, which he employed to convey conviction and sensuousness. 
who was kazi nazrul islam? He was a  poet, writer, musician and the national poet. from which country? Bangladesh. what were his religious beliefs? He was a Sunni Muslim.
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Kazi Nazrul Islam [SEP] Criticism
According to literary critic Serajul Islam Choudhury, Nazrul's poetry is characterised by abundant use of rhetorical devices, which he employed to convey conviction and sensuousness. He often wrote without care for organisation or polish. His works have often been criticized for egotism, but his admirers counter that they carry more a sense of self-confidence than ego. They cite his ability to defy God yet maintain an inner, humble devotion to him. Nazrul's poetry is regarded as rugged but unique in comparison to Tagore's sophisticated style. Nazrul's use of Persian vocabulary was controversial, but it increased the range of his work.