Yep Hing (Asafoetida), which if I reall rightly literally translated means 'Devil's Dung' it is a gum resin that comes in lump or powdered form. It is a form of flavour enhancer rather than an up-front flavour of its own, e.g. brings out the flavour of Garlic & Onions; in some recipes it is used as a replacement for the latter. It should be used very sparingly and only in some curries. I know that BIRs used it in base preparation sometimes, but I am not aware they use it in their fast food meals (but then that is only my experience).
So you may have a point here. As Hing does not disappear but amalgamates in the dish by melting in the hot oil, you have to add it to the hot oil right at the start of cooking, usually before anything else, and you only let it fry for 1 or 2 seconds max. Whatever you do do not be tempted to add a lot of it as all the flavours will screw up; a small pinch is all that is required for say, a meal for two. Don't bother with lump form unless you are 'Tempering' as in Tarka Dhall.
Hope this helps
CP