Paya are trotters, the feet of a goat or lamb or any cattle, a rich gourmet food, consumed mostly by recuperating patients for its nourishment. This is especially famous among the muslim community, basically a mughlai dish, expensive and widely popular among the riches(nawabs), who consume this soup with meat and marrow cooked in exotic ayurvedic spices to get the full benefit , while the poor peasants enjoy just the soup made with bones. Well mine too is like a poor mans paya (Do not laugh) as my butcher could not give us the cut with meat.