Argas Ca Pratisargas Ca|Vamso Manvantarani Ca. Vamsanucaritam Ceti| Puranam Panca-Laksanam. All Purana's pledge five targets Sarga Pratisarga Vamsa Manvantara and Vamsanucarita Agni Puraan is a Mahapurana. It contains Salagrama; Which describes the Isana Kalpa.