the author of the play/book ratnawali is
Ratnavali Ratnavali is a Sanskrit drama about a beautiful princess named Ratnavali, and a great king named Udayana. It is attributed to the Indian emperor Harsha (606â€“648).[1][2] It is a Natika in four acts. One of the first textual references to the celebration of Holi, the festival of Colours have been found in this text.[3]