Pressure cook the mutton with turmeric, pepper powder, green chillies, water and salt to cook well for around 20 to 30 minutes (depends on the mutton) and keep the gravy and mutton separate.
Heat a kadai and add oil.
Fry garlic for few mintues.
Add onions and sauté until it is brown. (This is optional, in the regular kadai recipes, onions are not used. This is a small variation).
Add the tomatoes and cook until it is soft with lid closed.
Once tomato is soft and fluffy, add crushed chilly, kashimiri chilly powder and corriander powder. Saute well until the raw smell goes.
Add garam masala and saute well.
Add the mutton, mix well and cook for about 10 mintues until the masala is coated well in mutton.
Now add the curd and mix well and cook for 10 minutes.
Add the left over mutton gravy and cook for 10 minutes and reduce the gravy to little thick gravy.
Add the methi leaves, julian ginger, Corriander leaves and mix well. Let it cook for 10 minutes.
Oil will float on top. Switch off and the floating oil can be removed from the gravy.
Serve the Mutton Kadai Dhaba style with roti or naan.