Heat the oil in a pan until hot.
Add the fresh chopped chillies and fry for 20 seconds or so.
Add the garlic and ginger paste and fry for another 10 seconds.
If using raw chicken add now and fry until it becomes opaque.
Add the sliced red pepper and continue to fry for a minute or so.
Add the tomato puree mixture, salt and cayenne pepper and continue to fry for another minute or two.
Add the yogurt and continue to fry for another minute or two.
*If we were using cold precooked chicken we would add in now to start reheating.
Add the base sauce and cook for 10 minutes on high or until the chicken is cooked through.
In the final couple of minutes stir in the garam masala, fresh coriander and the pan-fried precooked chicken if done using that method.