Firstly wash the mins with some turmeric powder the fishy smell disappears.now take a pressure cooker pop in mins (keema),all spices,oil,water,chopped onions,chopped tomatoes except Garam masala powder and coriander leaves.mix everything once and cover the lid and cook until 2-3 whistles.

Once we uncover the lid cook until oil separates from sides. Now add Garam masala powder and coriander leaves and can keep the consistency accordingly if required add 1/2 cup water to keep the gravy or can use without adding water.