Heat the oil in a separate pan.
Add one finely chopped onion and saute until well browned.
Add a little turmeric powder and mix.
Add 4 tbsp of the spice paste.
Saute the spice paste on a medium or high flame for 2-3 minutes.
Add tomato paste and saute well.
Add 1 tbsp of Kanda Lasun Masala, 1 tbsp of Chicken Masala, and 1/2 tbsp of Kashmiri Chilli Powder.
Add a little salt.
Saute the spices for 2 minutes.
Reduce the flame to low.
Add the pre-cooked chicken to the pan. draining any excess water.
Saute the chicken with the spices on a medium flame.
Add about three ladles of the water from the pre-cooked chicken to the pan.
Mix well and cover the pan. Cook on a low flame for about 15 minutes.
Stir once or twice during this time.
After 15 minutes, garnish with fresh coriander leaves.