Canasapura

The kingdom was mentioned in inscription K. 400 (IC VI, pp. 83–85), which was transcribed into English as:[6]

Twenty female buffalos with pendant udders (lambastanyaḥ) and having baby calves, and fifty milch cows, heavy with the burden of their udders, followed by their well-nourished calves, ten female and male slaves, happy in their minds, and four elephants were given to the [Buddhist] community by the king of Canāśa, whose mind was fixed upon awakening.

An inscription in Sanskrit and Khmer, found in Ayutthaya in 1939, dated 937 A.D., mentions four rulers of Srijanasa, starting with the first king named Bhagadatta (Thai: ภคทัตต์), followed by Sundaraprakrom (ศรีสุนทรปรากรม), who had a son named Sundararavarman (ศรีสุนทรวรมัน) and King Sundararavarman had 2 sons, the elder named Narapatisingharaman (ศรีนรปติสิงหวรมัน) who later ascended the throne of the Srijanasa kingdom. His younger brother, Mongkolvarman (มงคลวรมัน), created this inscription to celebrate the creation of the image of the queen mother, the wife of Lord Shiva, in 859 CE.[5]

The time of the establishment of Srijanasa is still unknown. It probably existed parallel to the Dvaravati culture of the Mon in what is now central Thailand. According to the inscriptions of Bo Ika and Sri Canasa written in Khmer, it must have been located on the periphery of the sphere of influence of Dvaravati, a network of city-states in the Chao Phraya Plain. According to these texts, both Hinduism and Buddhism were practiced in the community.[7]

After the reign of Narapatisingwarman, Srijanasa has disappeared from history. It is possible that it was merged with the Khmer Empire during the reign of King Jayavarman V, according to the inscription of the ancient city of Sema (dated c. 970 CE), which mentions the name of Dhritthapakdee Singwaraman (ทฤฒภักดี สิงหวรมัน), which is assumed to be the new royal name of Narapatisingwarman, whose role was reduced.[8]