West Bengal is celebrating the 116th birth anniversary of rebel poet Kazi Nazrul Islam today. Various functions have been organized through out the state to mark the day. The main function will be held in Kolkata this afternoon, where Chief Minister, Ms. Mamata Banerjee will present Nazrul awards to eminent personalities of different fields. The day is also being observed at Churulia in Burdwan District, the birth place of the poet.