Lord Narasimha and Lord Varaha are incarnations of Lord Vishnu but unlike other incarnations eg, Lord Rama, Lord Krishna, Nara-Narayana, Lord Vamana, etc, I do not see them to be having a full life span. They seem to be incarnations for fulfilling a purpose and as soon as that purpose is fulfilled we donot find what more happened in their life. Ofcourse there is a story of Lord Narasimha fighting Lord Shiva who was in Sharabha form but not more than that. Do we have any account of lives of Lord Narasimha and Lord Varaha apart from their main incidents of killing of Hiranyakashyapa and Hiranyaksh and the one I briefed above. Also, is their any mention of whether they are still alive or about their death or submerging into Lord Vishnu.