Dharmaraja is one of the primordial folk Gods of Bengal. Rituals of worshiping Dharmaraja is very own culture of folk Bengal. Mahamopadhyay Haraprasad Sastri was the one who enlightened Dharmaraja to the elite society. According to him, Dharmaraja was the counterpart of Lord Buddha and the origin of Dharmaraja was from Buddhism’s Triratna (Buddha, Dharma and Sangha). According to others, religion worshiping has originated from sun-worshiping. In the mythological account, the name of ‘Yamraj’ produced himself as Dharamraj. However, in the so-called low-class society of Rarh Bengal, Dharmaraj or Dhrama Thakur is worship by them (Bauri, Bagdi, Hari, Dom etc) and is the village idol. Most of Dharmathakur’s devotee are confined to the non-Brahmanic priests, such as Dom-Bagdi.
There is no incarnate of Dharmathakur. Most of them are rocks, being worshiped as Dharma Thaku. These are called Dharmashila. However, in the field of observation, the stone made turtles are worshiped as Dharmarthakur. There is an ancient connection between Dharma Thakur and turtle.
There is a special ceremony, called Muktosnan, the bathing ceremony of Mukto or Mukti. According to Ashutosh Bhattacharjee, Mukto or Mukti is the personified form of Muktahar rice who gets married with Dharmaraja. The ritual of their marriage is very similiar to Hindu marriage rituals. Priest and barber helps them to get married.