also called man-eaters ("Nri-chakshas," "Kravyads"). A female Rakshasa is called a Rakshasi , and a female Rakshasa in human form is a Manushya-Rakshasi . Often Asura and Rakshasa are interchangeably used. According to the Ramayana , Rakshasas were created from Brahma 's foot; other sources claim they are descended from Pulastya