Maybe this should have its own area?
Ill start the ball rolling, my local is the Mughal Spice in chepstow and is without doubt the best Indian Restaurant I have been to.
The food is top notch, their chef(s) are superb and the rest of the staff are first class, very friendly. The only downside is that at busy times it can be a bit slow. The only time I had an average curry was when I deviated from my normal night (Thursday) and went on a Tuesday, maybe it was a different chef or maybe he just had a bad day. The dish I would recommend (which I havent seen in too many other Indians) is Lamb Khalia - lamb tikka in a hot, sweet and thick sauce.