118 Bô Ika inscription (K. 400), founded in Muang Sema [fr], Nakhon Ratchasima Province, dated to c. 790 CE,[4] and also in the No.

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 Sri Canasa, starting with the first king named Bhagadatta (Thai: ภคทัตต์, RTGS: Phakkhathat), followed by Sri Sundaraprakrama (ศรีสุนทรปรากรม, Si Sunthra Prakom), who had a son named Sri Sundararavarman (ศรีสุนทรวรมัน, Si Sunthra Woraman) and King Sri Sundararavarman had 2 sons, the elder named Narapatisimhavarman (ศรีนรปติสิงหวรมัน, Si Naruepati Singha Woraman) who later ascended the throne of the Sri Canasa kingdom.

His younger brother, Mangalavarman (มงคลวรมัน, Mongkhon Woraman), created this inscription to celebrate the creation of the image of the queen mother, the wife of Lord Shiva, in 859 CE.

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.

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 Driḍhabhakti Simhavarman (ทฤฒภักดี สิงหวรมัน, Thritthaphakdi Singha Woraman), which is assumed to be the new royal name of Narapatisimhavarman, whose role was reduced.