‘Prithviraj’ maker Chandraprakash Dwivedi: I enjoy entering unknown worlds of great heroes

'Prithviraj' is also based mainly on medieval literature, an epic called 'Prithviraj Raso' by the great poet Chand Bardai. Apart from couple of versions of 'Raso', there are many other literary works on Prithviraj, his life and times. In addition to these there are commentaries on 'Raso'," Dwivedi said.