Add oil in kadai heat it add jeera saunf and hing to it let it splutter add then add onion paste ginger garlic paste and cook well. Once cooked add cooked black urad dhal with boiled and mashed rajma and boil with water and masala and salt for 3 mins add milk in the end and simmer for 2 mins. Serve and garnish with Kasuri methi. This is less fattening and tastes just like restaurant.