The main Muslim festivals are Eid-ul-Fitr and Eid-ul-Azha. From time to time folk culture has influenced these festivals, as a result of which the original religious practices have changed. Eid-ul-Fitr is observed after the end of the month of Ramadan.

Eid fairs are organized at many rural places. These fairs are basically gatherings that promote friendship among the rural people. The fairs are arranged on the bank of a nearby river or under a big banyan tree near the local bazar. Handicraft items and foodstuffs such as chira, muri, khai, manda and sweets are sold in the fairs. Nakshi pankha, dolls, decorated pottery as well as musical instruments such as flute, drum, ektara are also sold. Some fairs have merry-go-rounds, puppet shows and bioscopes. In some areas of riverine Bangladesh, boat races are organized.

The main feature of Eid-ul-Azha is the sacrifice of animals, especially cows and oxen. Many people in the villages sacrifice domestically raised cows or goats. The majority of the professionals in towns sacrifice cows on a share basis. The well to do sacrifice cows or goats or both animals on their own.

Eid for the common people means meeting family members and friends, buying new clothes and preparing delicious food on the Eid day.

The oldest manifestation of goddess Durga, who slew the Mahisasura, belonged to the fifteenth century AD. A series of festivals, centering on Durga Puja, is held in Bangladesh. Usually, on the sixth lunar day of the bright fortnight in the Bengali month of Ashwin, the ceremonial awakening of the goddess Durga takes place.

Apart from the Hindus, there are also two other minority religions communities in Bangladesh, viz., the Christians and the Buddhists, who observe religious festivals of their own.

The main festival of the Buddhists is Buddha Purnima or Baisakhi Purnima. The birth of Buddha, his adoption of asceticism, attainment of supreme enlightenment, nirvana - all these occurred on the full-moon lunar day in the month of Baisakh and as a result this is themost important and solemn festival of the Buddhists. Baisakhi Purnima is celebrated in Bangladesh with great splendour.

Christians observe their main religious festival, Christmas day, on 25 December on the occasion of Jesus's Birthday. The main components of this festival are special prayers offered in churches, arrangement of feasts and offering of gifts among friends and relatives.