Pierce the chicken pieces well with a fork to optimize marination
Pour over the marinade, covering both sides, and let is sit for 30 minutes to overnight.
Remove the chicken from the fridge half an hour before cooking to bring it to room temperature.
Heat 2 tbsp of oil in a pan n medium high heat and add the chicken pieces. (hang on to the extra marinade!)
Cook, undisturbed for 4-5 minutes per side, the chicken should develop a bit of a crust.
Now add back your reserved marinade, cover the pan and cook on medium low until cooked through, about 7-10 minutes. Tip: If you pierce the meatiest part of the chicken with a fork or knife it should go through very easily.
Turn up the heat, add in your lemon pieces and chilies and baste the chicken for a minute or so to thicken the masala and let the new additions meld with it.