If mutton is uncooked after making biryani what to do

 If the lamb is not cooked after the biryani is done, the curry cannot be boiled again with the biryani because the biryani will sink.

So take the curry separately from the biryani and add a pinch of sugar, and the biryani spice, a little salt to boil and then add to the biryani.

Adding sugar will make the curry fry faster.

If you do not add spices when cooking the curry alone, the curry will be spicy without the spice taste.

Another way

Take the lamb in the biryani separately and chop it into small pieces .Then put the frying pan in the oven, pour a little oil and cover the curry.

Cover and simmer on low heat for 3 minutes.

Chop the curry into small pieces so it will fry quickly.

If you would like to cook it more evenly, place the undercooked meat in a warm oven, about 250 degrees F, and bake it until a thermometer inserted into the meat reaches at least the recommended minimal internal temperature