Hi
Maybe to get a better idea of yesteryear curies we should consider the migration from the Indian continent and not just the ownership of curry houses, eg. partitioning of India led to Kasmiri guests. Bengal Independence led to Bengali guests. Also traditional dishes from these areas,(you don't get much fresh water fish in BIR do you). The question raised by SS on another thread about a recipes containing yogurt and nuts about being Balti, is an excellent example. As Mongol influences do exist in Northwest Frontier cooking. Also what spices were comonly available at an affordable price, these early BIR meals were cheap eats ,not fine dining in the whole.
Regards