What are the possible substitutions for Cumin in Indian cuisine? I've always been interested in trying to make some type of dahl or other Indian cuisine but I'm severely allergic to Cumin. This typically strikes me out for recipes with curry or chili powder. Does anyone have some PRO tips on types of curry (green, yellow, etc) or Indian foods that would allow me to venture off into this culinary space? 

P.S. I'm also gluten intolerant and allergic to nuts and shellfish.
You know, I don't think you need to overthink this too much. If you look at a typical Indian curry recipe, it might have 10 spices in it. Just leave out the cumin, and maybe bump up the other spices a little to compensate. It won't be exactly the same, but it will still be delicious. You are correct that you'll have to be careful to avoid pre-packaged spice mixtures unless the ingredients are spelled out. Here is my Chana Mushroom Masala, from which you can safely omit the cumin: http://www.herbivoracious.com/2009/09/quick-chana-mushroom-masala-chickpea-curry-recipe.html