The Uttara Kanda of the Ramayana and the Shiva Purana narrate about Vashishtha cursing Kalmashapada with slight variation. The Uttara Ramayana tells that once, while hunting in the forest, Kalmashapada mistakenly kills a rakshasa disguised as a tiger cub. His fellow rakshasa - who was also disguised as a cub - assumes his true form and warns the king that he will take his revenge against the wrongful death at the proper time. The Shiva Purana and the Bhagavata Purana identify the other rakshasa as the brother of the slain one, and does not mention the tiger cub disguise. The Vishnu Purana also notes that the demons appeared in the form of tigers.