Hi Mike,
Ok, the acronym BIR, British Indian Restaurant, is a catch all as you rightly say but, how many of these restaurants describe themselves as anything other than Indian. Very very few advertise the fact that they are Punjabi, Bangladeshi or even Pakistani even though, very few of them are actually Indian. So they all tend to, or certainly used to, describe themselves as Indian restaurants, hence the acronym.
Secondly, I don't think you can use European food as an example to compare with BIR. Within European cuisine, you have French, Spanish, Italian, Greek and so on...all bearing little resemblance to each other, whereas BIR food, is in the most part, the same. Only the quality differs
I can't speak for everyone but, the BIR food that I want to replicate is the standard Indian restaurant fayre that we find up and down the country. I know that there are regional differences, but that is British regional differences, not Asian subcontinent regional differences.
It is a good point that you make though. BIR has changed over the past 20/30 years, moving from predominantly Bangladeshi, toward Punjabi and Pakistan. And so has the BIR taste, although I suspect that that, is more to do with commercial methods being introduced rather than the origin of the chef. I could be wrong though

It will be interesting to see everyone elses view on this.
Good post Mike,
Ray
