Pahela Falgun

Pohela Falgun ("Pôhela Falgun" or পয়লা ফাল্গুন "Pôela Falgun"), also known as the first day of Spring of the Bengali month Falgun, is a holiday celebrated in Bangladesh. The celebration was started in 1991 by students of Dhaka University's Faculty of Fine Arts. The first of Falgun usually falls on 13 February of the Gregorian Calendar. The holiday in Bangladesh also celebrated as "Basanta Utsab" (; "Spring Festival"), 
Names.
In Bengali, Pohela stands for 'first' and 'Falgun' or "'Fagun"' is the eleventh month of the Bengali calendar.