Amrapali
After a failed conquest, Emperor Ajaatshatru pretends to be a soldier in the enemy's army to weaken them from the inside. However, he falls in love with Amrapali by faking his identity.
Starring Vyjayanthimala, Sunil Dutt, Prem Nath, Bipin Gupta, Gajanan Jagirdar, K.N. Singh, Ruby Myers, Narendra Nath, Baburao Pendharkar, Mridula Rani
Watch "Amrapali" on Netflix released in 1966. It's a fantasy and musical movie, and has a rating of 6.7 out of 10 from Imdb which is usually fine for this kind of movie.