Heat a pan. Once it is heated, add onions, green chilies, and curry leaves. Sauté the mixture till the onions turn golden brown.
In the meantime, take a mixer and grind all the Ingredients listed under for masala. Grind the mixture till it becomes a paste.
Add the mixture into the pan along with the cooked beef. Add garam masala powder and sauté it.
Add a little water and salt to the mixture in the pan.
Cook the mixture till the gravy becomes thick. It will take approximately 15-20 minutes.