Yes Mark, "real Balti" (which is a British phenomenon) use dried fenugreek leaves (The fenugreek plant grows wild from the eastern Mediterranean area to China. Its cultivated worldwide as a semi-arid crop.The name fenugreek or foenum-graecum is from Latin ( ;)not saying a word) for "Greek hay"). Apparently the Romans used to feed their horses with it.
The BIR curry and real Balti are "British", meaning that although origins are Asian/Middle Eastern, the taste and techniques have been developed by the British Indian restaurant trade, yep, although you can get an BIR curry in europe, unless it is tradionally cooked or traditional "restaurant" cooked, it has originated in the U.K.
We have spent years (centuries) eating Indian food and quite a few years eating Indian restaurant food in the U.K (and proud of it we are too!!!)! But the U.K scene has a specific flavour, so whether fenugreek is a part of that scene or not can?t be judged by anyone who hasnt tasted the U.K BIR food. I am talking about traditional BIR curry, not Tamarind or any other trad type food outlet.
Hope this helps

Ashes