Take one wok, add first layer of biryani masala coated goat meat at the bottom and add 1/4 cup warm water and top with boiled basmati rice.
On Second layer again add biryani goat mutton and basmati rice.
On Third layer again add biryani goat mutton and basmati rice.
On Forth layer, add remaining goat mutton and remaining basmati rice.
Add fried golden onions, green chilies and mint leaves on last layer of biryani.
Add saffron milk on layered biryani.
Put the lid on the wok. Seal the biryani wok with aluminum foil.
Take one griddle and put it on medium heat and preheat the griddle.
Keep aluminum sealed wok on preheated griddle, let the form some water vapor on the wok lid, then reduce the temperature to low and dum the goat mutton biryani for 10 minutes.
After ten minutes, Goat mutton dum biryani ready.