Charak Puja is one of the most important festivals of Hindu religion in West Bengal and Bangladesh. This is a Hindu old ritual of immolation. This puja is held on the last day of Chaitra (last month of Bangla calendar). The celebration of this ceremony is not very old among the upper class people. However, in the ancient times, this festival was present in the community.
In 1485 the king Sundernand Tagore's family started this worship but Charak puja was never worshiped by the kings. It was folk culture of Hindu society. Most of the worshipers of worship are people of the lowly community of Hindus. So there is no need of Brahman in this worship.
All of these worshipers have a hope & faith in ghostly and reincarnation. Various events are similar to the earliest known languages of the Old Age. Many types of physical tortures are considered to be part of religious ritual in the festival of worship. Chasing a devotee or a sannyasin with the iron latch, the wheels are rotated with speed. On his back, hands, legs, tongue and other parts of the body, the arrow is pierced. Sometimes, the burning iron shank is blown on his body. In 1865, the British government closed the rule by law, but it is still common among the common people of the village.
The worshiper of this ritual believes, if they accept extreme torture into their body at the last day of the year by the name of God. They will rewarded from God a peaceful life and remove all sin which being done by them .
In the district of Rangpur, Dinajpur, Panchagarh, Nilphamari, Bogra, Rajshahi, Naogaon, Natore, Pabna, Sirajganj, Jhenaidah, Kushtia, Jessore, Satkhira, Bagerhat and Khulna were organized for arrange this festival at Bangladesh.