Final answer:
Kazi Nazrul Islam received the D.Litt. (Doctor of Letters) from the University of Calcutta for his contributions to Bengali literature and culture.
Step-by-step explanation:
Kazi Nazrul Islam was awarded the D.Litt. (Doctor of Letters) by the University of Calcutta. This prestigious degree is often bestowed upon individuals who have made significant contributions to the arts, literature, or other scholarly fields. Kazi Nazrul Islam, a renowned poet, writer, and musician, received this honor in recognition of his influential work and contributions to Bengali literature and culture.