Thanks for the replies guys,
I have lookked online for anything related to "Komala" And I guess as it was a chef's special it was a place he had visited or was born... who knows. I've taken a look at the recipe link posted (thank you!) and while the idea of using orange juice, tomato ketchup and worcester sauce fills me with horror, I might just give it a try, I guess you have to go there to come back in some instances.
Maybe I'll start with a Jalfrezi and strip some oranges - can't get tangerines until November. and substitute some base gravy with orange juice. I'll have aplay and let you know how I get on. It was such a wonderful spicy dish and the bitterness of the tangerine skin worked beautifully with the spices. The Indian was in Willenhall - near Walsall and we were spoilt for good curry houses. Recently they have taken it off the menu so I might drop them a cheeky email and ask if they can tell me what was in it. Can't hurt!