Islam, the state religion, is the faith of 88 percent of the population, almost all of whom adhere to the Sunni branch. Hindus make up most of the remainder, and the country has small communities of Buddhists, Christians, and animists.
Pahela Baishakh first day of the Bangla year. Pahela Baishakh is celebrated in a festive manner in both Bangladesh and West Bengal. In Bangladesh Pahela Baishakh is a national holiday. Pahela Baisakh falls on April 14 or 15.
In the sixteenth century Christianity brought to the historic region of Bengal (now divided between Bangladesh and India) by Portuguese traders and missionaries. Aside from Bengali Christians, a significant number of the population in Bangladesh are Christians.