Wash the mutton & put it in a pressure cooker. Add 3/4 cups water, salt, all the whole masalas except the green cardamoms. Add ginger powder & saunf powder also.
Pressure cook for ten minutes. If the water is in excess after the meat is cooked allow it to boil till very little water is left.
Beat the curds along with the corn flour & add to the boiling meat.
Heat the oil or ghee, add crushed green cardamoms & the pepper powder & pour it over the mutton. If you have garam masala you could add a pinch.
Your yakhni is ready.