Over 65% of the Buddhist population is concentrated in the Chittagong Hill Tracts region, where Buddhism the predominant faith of the Chakma, Marma, Tanchangya and other Jumma people, while the remaining 35% of the population are from the Bengali Buddhist community.Buddhist communities are present in the urban centers of Bangladesh, particularly Chittagong and Dhaka.
People who follow Buddhism in Bangladesh belong to the Barua people in majority with the percentage of 65% among the 0.07% population of Bangladesh, Chakma, Chak, Marma, Tanchangya and the Khyang, who had been since time in memorial have practiced Buddhism.Other tribal, notably those who practice Animism, have come under some Buddhist influence, and this is true in the case of the Khumi and the Mru, and to a lesser extent on the other tribals.Legend said that Gautama Buddha came to the region to spread Buddhism, and it was speculated that one or two individuals became monks to follow his footsteps.However, Buddhism did not gain much support until under the reign of Asoka when Buddhism gained a toehold.The Pala Empire that controlled the Indian subcontinent spread many Buddhist ideologies in modern Bangladesh and built many monasteries such as the Mahasthangarh and the Somapura Mahavihara.Also within the same Pala era, a famous preacher named Atisha was born in the city of Bikrampur and spread Tibetan-Buddhism.
Chandra Dynasty's Puranchandra and Subarnachandra adopted Buddhism, as did their successors Trailokyachandra and Srichandra who ruled Harikel and Chandradwip (Barisal).
In subsequent centuries and up through the 1980s nearly all the remaining Buddhists lived in the region around Chittagong, which had not been entirely conquered until the time of the British Raj (1858–1947).
During the 19th century, a revival movement developed that led to the development of two orders of Theravada monks, the Sangharaj Nikaya and the Mahasthabir Nikaya.
In the Chittagong Hills, Buddhist tribes formed the majority of the population, and their religion appeared to be a mixture of tribal beliefs and Buddhist doctrines.
According to the 1981 census, there were approximately 538,000 Buddhists in Bangladesh, representing less than 1 percent of the population.
There are several monasteries in the Chittagong, and in most Buddhist villages there is a school (kyong) where boys live and learn to read Bengali (national language) and some Pali (an ancient Buddhist scriptural language).