DD,
So far I only use fennel seeds in pilau rice but would be interested in their use in the main curry. I haven't found any requirements yet for methi seeds but I have them in my spice collection. I'm interested in traditional Indian cooking as it may mean I could produce better BIR food through a greater understanding and knowledge of spices and techniques. So far in that direction I only make dhals and keema peas.
From comparing my cooking with my new local takeaway (which is pretty good) there are flavours, especially in the oil, that I really like but just can't put my finger on. The oil has a more intense flavour than I seem to be able to produce.
Paul.