Heat oil and fry potato in it. Then add puree in it. And cook it till it chages colour to dark.

Now add green chilli, red chilli powder, mutton masala, turmeric in it and mix it. And let it fry for a while. Then add curd and stir till it mix well.

Now add mutton kheema with 1 cup stock of it and mix it. Add salt accordingly and let it cook for 10 minutes on low flame.

Now tale it in bowl add butter and fresh coriander and serve it.