Question: What is the cause of death of composer of song O Mon Romzaner Oi Rozar Sheshe?
Sentence (from "O Mon Romzaner Oi Rozar Sheshe"): Oi Rozar Sheshe Elo Khushir Eid, also spelt O Mon Romjaner Oi Rojar Sheshe Elo Khushir Eid, is one of the most important Bengali Eid-ul-Fitr songs by Kazi Nazrul Islam, the national poet of Bangladesh.
Relevant evidence: Yes