There is a famous book called Aryamanjushrimulkalp, which is Mahayana buddhist scripture. It was published by Ganpati shastri in 1925 AD. there are thousand verse in it, inside of which BC 7th Century from 8th Century history of ancient India up to AD.
This book throws light on some events in the history of Harsh period. In this, only the word ‘H’ is used for Harsh. But many non-historical materials are also filled in this book. Therefore, this scripture cannot be believed much.
Reference : https://www.indiaolddays.com
