Heres how I made it at home :
In the meanwhile grind the following to a fine paste using as little water as possible-
Onions- 2; small or medium sized,cubed
Tomatoes-2;cubed
Green Chillies- 3 or 4 ; adjust per taste or tolerance
Cumin Seeds- 1 tsp
Garam Masala Powder- 1 tsp
Garlic- 4 or 5 pods
Ginger paste-2 tsp; or 1/2 inch sq piece if you don't have the paste
Kasoori Methi- 1 tsp
Preparation Method:
In a pan add oil- 1 tbsp and the ground mixture. Let it come to a boil and cook it covered till you can see the oil separating from the mixture. Stir occasionally.
Now add salt, garam masala powder- 2 tsp , kasoori methi ( crushed )-2 tbsp, jaggery - 1/2 inch square cube, amchur powder- 1 tsp and mix well.
Now add chopped cilantro-few , well cooked Rajma along with the water from the pressure cooker and bring it to a boil.
Reduce the flame and let it simmer for 10 minutes.
Stir occasionally and cook until the water from the gravy is reduced.
Do a taste test and add salt if necessary.
Rajma Masala is ready to be served with warm Chappathis :)