Add oil in pan and add onion ,cook until golden brown.
When onion golden brown add ginger garlic paste with mutton cook for 5 mints.
Add all spices and 2 cup of water and cook until mutton done.
When mutton done add tomatoes and potatos and cook finelly for bhunai.
After bhunai add water as you like for garavy and cok for more 10 mints.
Mutton potato curry ready to serve.