1. This is a very mild biriyani, as there are no other spices involved apart from the chilli powder. Add more for a more spicy biriyani!
2. Ensure that the chicken is well cleaned and drained. If needed, pat with a kitchen towel well. Otherwise it will lead to a watery masala.
3. You can replace the chicken with mutton or beef, and accordingly adjust the cooking time for the masala.