Bengali New Year (Bengali: নববর্ষNôbobôrsho) or Pôhela Boishakh (পহেলা বৈশাখ ), happening on the Fourteenth Apr or Fifteenth Apr, is the first day of the Bengali schedule, famous in both Bangladesh and the Native indian condition of Western Bengal, and in Bengali areas in the other Native indian declares, such as Assam, Tripura, Jharkhand and Odisha. It correlates with the New Seasons Times of several Southeast Oriental schedules.
In Bengali, Pohela appears for ‘first’ and Boishakh is first 1 month of Bengali schedule. Bengali New Season is known as in Bengali as "New Year" (Bengali: নববর্ষNoboborsho, from Sanskrit Nava(new)varṣa(year)) or "First of Boishakh" (Bengali: পহেলা বৈশাখ Pohela Boishakh or পয়লা বৈশাখ Pôhela Boishakh). Nobo indicates new and Borsho indicates year.
The Bengali calendar is closely tied with the Hindu Vedic solar calendar, based on the Surya Siddhanta. As with many other variants of the Hindu solar calendar, the Bengali calendar commences in mid-April of the Gregorian year. The first day of the Bengali year therefore coincides with the mid-April new year in Mithila, Assam, Burma,Cambodia, Kerala, Manipur, Nepal, Odisha, Sri Lanka, Tamil Nadu and Thailand.
King Shoshangko of ancient Bengal, who ruled approximately between 590 CE and 625 CE, is credited with starting the Bengali era.His kingdom encompassed West Bengal, Bangladesh and parts of Bihar, Odisha and Assam. The starting point of the Bengali era is estimated to be on Monday, 12 April 594 in the Julian Calendarand Monday, 14 April 594 in the proleptic Gregorian calendar. The Bengali calendar is derived from the Hindu solar calendar, which is itself based on the Surya Siddhanta