Wash and Soak black chana for 4 hours.

Pressure cook black chana, tomato, ginger, garlic, loung, cinnamom and black pepper in a pressure cooker for 10 minutes after first whistle. Use two bowl of water for boiling. Let pressure releases automatically.

Now grind this mixture in a grinder.

In a bowl add 2 tb spoon corn flour and make a fine paste by adding 2 tb spoon water.

In a separate pan heat 1 spoon butter. Add grinded mixture. Cook for 2 minutes. Now Add corn flour mixture slowly and stirring gently to avoid forming of lumps. Add 1 bowl of water and salt to taste and cook till it turns thick. Switch off the flame.