First of wash the kidney beans pressure cook it with 3cup of water and 2cup rajma close the the lid when one whistle came then sim the gas for 15min

After 15min turn off the gas

Meanwhile heat a kadhai add 2tsp mustard oil then add onion garlic paste,then cook for a while after that add tomato paste then add 2tsp rajma Masala, 1tsp red chilli powder

Salt as per taste then cook for 10 min then add rajma and water I prefer rajma water which I boiled

Garnish with coriander leaves