We have to be honest. We have no idea what bhalle papdi is. (Or bhel puri or aloo chhole or dahi bhalle, for that matter.) But that's OK. We do know it tastes good, and that's all that matters. Nothing on the Taj Chaat House menu is translated into English, so if you're less than adventurous, you may want to bring along a dining companion who's well-versed in Indian cooking. Otherwise, you can walk up to the counter, pick out a couple of items and take your chances. Either way, you'll probably be satisfied. And, if not, you can toss your Styrofoam plate and plastic fork and try again. Taj Chaat House serves Indian street food out of a nondescript strip-mall unit off of MacArthur Boulevard in Irving, and the interior looks about like you might expect: lots of tables, very little decor (if you don't count the bright yellow walls) and fans blowing from the ceiling and from all sides. It's quick and casual, and the staff is so polite, they don't even get irritated when you stand in front of their counter gaping at the menu for far too many minutes.