Spread the marinated mutton in the pan.
Add whole green chilies (optional).
Spread half of the prepared rice on the mutton and spread the potatoes and whole green chilies on top.
Layer the remaining rice on top of the potatoes and garnish with fried onions.
Pour the saffron milk and ½ cup oil on top of the rice.
Pour ½ cup plain milk on top of the rice.
Roll the atta into a thin roll.
Seal the pan with the atta.
Place the pan on top of the tava and cook on low flame for 70 - 75 minutes.
When the atta becomes hard, the biriyani is cooked.
:- Serve with onion raita.