Madras Chicken Biryani

In a large bowl combine ginger, garlic and green chilly paste, broken green chilly, tomatoes, curd, chilly powder, salt, half of the mint and corriander leaves. Marinade the chicken pieces in this mixture for atleast 2 hours. Soak the rice in water for half an hour. Heat oil in a large pot add the whole garam masalas, when they crackel and aroma rises add the onions. Fry the onions till they turn brown (this may take some time, to make it quick you can add the fried onions available in stores). When the onions are brown add the chicken pieces along with the mixture. Cook till gravy turns thick and add the rest of mint and corriander leaves. Now depending on the amount of gravy add the water for rice. Check the seasoning and br