Analysis of information sources in references of the Wikipedia article "Prithviraj Raso" in English language version.
However, scholars who believe in the historicity of Sanyogita (and of Chand Bardai being a bard — possibly Prithvibhatta at Prithviraj Chauhan's court), say that the additions and embellishments in the later versions do not detract from the substance of the original tale given in the earliest recension. It has also been pointed out that the oldest sections of the Prithviraj Raso are undoubtedly in the language and poetic style known as the 'Lata Apabhramsha' (also 'Latiya Apabhramsha') something typical of the twelfth-thirteenth centuries, which was later overtaken by other linguistic styles. Thus, several of Rajasthan's scholars feel that the original recension of the Prithviraj Raso should be assigned to c. AD 1235-40 i.e. within three to four decades of the death of Prithviraj Chauhan