1. Partially boil rice (until the rice gets a white colour).
2. Drain the water and keep it aside.
3. Blend all the spices (from no. 1 - 8).
4. Add salt as per taste and also as per the chicken quantity only.
5. Take a flat base aluminium container.
6. Put 4 tablespoon of oil and arrange all the chicken pieces on it.
7. Pour the blended masala on the chicken.
8. Mix some salt to the partially boiled rice and spread the rice evenly on the chicken and masala.
9. Spinkle the garam masala on the rice.
10. Cover it properly and cook it on low flame for 25 mins.
11. Cut onions length wise
12. Add oil to kadai and fry onion on medium flame till it turns golden brown.
13. After the rice is done, add the fried onion and chopped coriander and mint and mix it well with the biryani
14. Put it on low flame again for another 5 mins.
15. Your Biryani is done!! Make some salad to go with it....

Tips:

1. If you have time and you want an even better tasting biryani, then marinate the chicken pieces in the blended masala for 1-2 hrs.
2. Before serving, cut a tomoto length wise and garnish the biryani plate with it.