Heat ghee in large pot. Add onion & garlic & fry till browned. Stir in ginger & fry for 2 minutes. Add garam masala, turmeric & chili, stirring for a minute. Stir in potatoes, salt & water. Mix well, bring to a boil & simmer for 8 to 10 minutes. Stir occasionally. Add mushrooms & peas & stir. Cook, covered, for 5 to 8 minutes. Remove lid, raise heat & cook till 0.75 of water has evaporated. Stirring constantly. Serve with dal. Rani, "Feast of India"