I want authentic Hyderabadi biryani recipe

Hi, I'm looking for someone to provide me with an authentic Hyderabadi biryani recipe. I'm looking for a recipe that uses chicken and mutton as the preferred meat, and has correct level of spice. The recipe should be cooked in the traditional Hyderabadi style. If you can provide me with a recipe that is true to its heritage, and offers an optimum blend of flavors and spices, please bid. Additionally, if you can offer a modern version of the recipe, I would love to give it a try too! I'm looking forward to working with you.This is for commercial use I Want very good recipe if not best.