Pahela Baishakh (Bengali: পহেলা বৈশাখ) or Bangla Nababarsha (Bengali: বাংলা নববর্ষ, Bangla Nôbobôrsho) is the first day of Bengali Calendar. It celebrates on 14th April as a national holiday in Bangladesh.
The festival date is set according to the lunisolar Bengali calendar as the first day of its first month Baishakh. It therefore usually falls on or about 14 April every year on the Gregorian calendar. The same day observe elsewhere as the traditional solar New Year and a harvest festival by Hindus and Sikhs, and is known by other names such as Vaisakhi in central and north India, Vishu in Kerala and Puthandu in Tamil Nadu.
The festival celebrates with processions, fairs and family time. The traditional greeting for Bengali New Year is "Shubho Nabobarsho" which is literally "Happy New Year". The festive Mangal Shobhajatra organizes in Bangladesh. In 2016, the UNESCO declared this festivity organized by the Dhaka University as a cultural heritage of humanity.