Cut beans into pieces and keep aside. Chop potatoes and capsicum into medium pieces.Chop tomatoes finely.

Take a kadai. Add little oil. Add beans, potatoes and capsicum and saute for 5 mins in high flame.

Then add tomatoes and all masalas and salt and mix well. Cover it with a lid and keep some water on lid. Cook on low flame till potatoes are soft and water dries. Serve hot with roti or khichdi.