I'm not convinced Passata has any place in Indian cooking. It seems to have been developed more for the Italian market.
From some recent posts is seems the BIR's create their own tomato puree / paste. I think there is only one tomato based ingredient that is called either puree / concentrate / passata depending on the chef. The stuff the BIR's use is possibly not just out of a jar, but could well be created by simmering puree / concentrate in herbs or spices for a long time.
I do exactly the same when cooking up a batch of pizza sauce and the results taste lovely.
From some recent posts is seems the BIR's create their own tomato puree / paste. I think there is only one tomato based ingredient that is called either puree / concentrate / passata depending on the chef. The stuff the BIR's use is possibly not just out of a jar, but could well be created by simmering puree / concentrate in herbs or spices for a long time.
I do exactly the same when cooking up a batch of pizza sauce and the results taste lovely.
