Steam the tomatoes,de-skin,puree and sieve it.
In a pan,heat oil,add tomato sauce to it.
Add spices to it and let it cook for 5 minutes.
Now,add the grilled chicken to it and let it come to a boil,cook for 5-7 minutes.
Add cream,butter to it and stir well.
Add dried fenugreek leaves and garnish with chopped coriander.
Serve hot with roti or rice.