Marinate mutton: Mix 750g mutton with 1 cup yogurt, 2 tbsp ginger-garlic paste, 2 tsp red chilli powder, half tsp turmeric, 2 tsp garam masala and salt. Marinate overnight.
Fry village-style birista: Slice 4 large shallots. Deep fry until very dark, almost charred brown — village biryani uses very dark fried onions. Drain.
Parboil rice: Wash 2.5 cups seeraga samba or regular rice. Soak 20 minutes. Boil in salted water for 6 minutes. Drain.
Cook mutton: In a heavy pot heat 4 tbsp sesame oil. Add marinated mutton and cook on high heat 12-15 minutes.
Add tomatoes and spices: Add 4 chopped tomatoes and cook 8 minutes. Add 1 tsp more garam masala.
Layer: Spread mutton as base. Add parboiled rice on top.
Add garnishes: Add dark birista, 4 tbsp ghee, fresh coriander and saffron milk.
Seal with dough: Seal the pot with thick wheat flour dough for authentic village style.
Dum cook: Cook on very low heat on a tawa for 45 minutes.
Serve: Open the seal at the table dramatically. Village style kari biryani is intensely spiced. Serve with cooling onion raita.