Wash and cut the potatoes, carrots and beans.

Saute them in kadai adding butter fr 5 to 10 min.Add 3 cups of water and boil fr 5 min covering the lid.Off the flame and let it cool.

When cool grind it to a fine paste.and strain it.

Adjust the consistency.keep it to boil.Add black pepper and roasted cumin powder and serve hot garnishing it with fresh cream and coriander