Hi All,
When you consider the vast majority of the meal is precooked, meat, curry base.onions etc
it follows on that if this mixture was also precooked which i am sure it is,then the spice mix would
be added to a watered down tomato based sauce ( in the case of tikka masala)prior to precooking which then requires only heating, which is nothing more than pataks ready mixed pastes, but I feel is a much more diluted and subtle mix in the bir. My reasoning comes from only the smallest addition of say pataks tandoori paste in the final dish will overwhelm the taste.

steve e