I've already said that I appreciate Panpot's efforts on this so I won't repeat it again...oh wait I just did!
However, there's regional variation and there's just plain wrong, and the Ashoka stuff is just plain wrong.
It's BIR style, no question about that but, for example, a Rogon Josh with high (or any) amounts of coconut, nuts, and cream is in no way a Rogon Josh, it's way way off the mark.
I'll stick to more traditional bases, the likes of CA's and Bruce Edward's, which produce curries that come close to about 99% of BIRs in the UK...i.e. those that aren't part of the Ashoka chain.
It seems that they have deliberately gone all out to completely redefine each dish by ignoring any basis on which the BIR dishes are founded, i.e. the original 'authentic' pakistani/indian/bangladeshi recipes.
Not my cup of chai at all!
What a shoka!
P.S. Panpot, I think you need to separate out criticism of you, and I don't think there has really been any, and criticism of the Ashoka method, for which there has been plenty!