Heat oil and add onion and fry till golden. Add cumin seeds and dry red chilies.
When cumin seeds are done and chilies turn brown add salt, turmeric, chili powder and chopped tomato. Sauté foe a moment.Add methi and 1 cup water and cook on a medium flame.till done and till water is fully absorbed.
Now add potatoes and 1/2cup water and mix well. Cook till potatoes are done.