Sankat Mochan Mahabali Hanuman S01 E151 Narayan Ka Nar Avatar

Ravan is introduced to a few Rakshasas by his father-in-law. The powerful Rakshasas will only be killed by a God who in incarnated as a human being. The motive of introducing these Rakshasas is to find Narayan who is born on the earth as an avatar.