Hyderabadi Chicken Biryani

1. Marinate chicken with yogurt, ginger-garlic paste, chili, turmeric, and biryani spices for at least 30 minutes.
2. Cook basmati rice until it is about 70% done.
3. Layer the marinated chicken, rice, fried onions, mint, coriander, and saffron milk in a heavy pot.
4. Cover and cook on low heat until the chicken is thoroughly cooked and the rice is tender.
5. Gently mix and serve hot with raita.