Sambhar powder, a blend of spices and lentils, is used in South Indian Dals. It is possible to buy Sambhar Powder from an Indian Grocer, but things always taste better if you make them yourself from scatch! I haven't made this yet but, personally, I would cut down on the number of chillies!! The amount it makes is an educated guess. Adapted from a recipe by Madhur Jaffrey.