A small town near Vijayawada namedMangalagiri. On the top of the hill Lord Narasimha in sitting posture blessesall. His mouth is wide open. Panakam(Panagam) is made of jaggery mixed withwater with dried ginger, elaichi and will be in liquid form. If one jug full ofPanakam (Panagam) is given to the archaka and he pours in Narasimha's mouthexactly half of the Panakam (Panagam) will be consumed by Lion god and the resthe will give as Prasad to devotees. Not even a single drop will go more thanthat half jug. Any evidence from puranas for this miracle. I went once andexperienced this amidst a good darshan.