Last night was my third time at Blue Taj. My only reference for Indian in Charlotte is Woodlands and Jaipur. I convinced a few friends to drive down with me from Plaza-Midwood because I think Blue Taj is worth it.
We had the Paneer Pakora, Punjabi Chicken Curry, Lamb Curry and (of course) Chicken Tikka Masala. I try not to order the Tikka Masala because I want to try new dishes but it is ridiculously good at Blue Taj. Your entrees are always served with rice but Naan is a little extra. Worth it though, need the Naan to soak up all that delicious sauce. My friends poked fun at me for asking about the amount of sauce with the Punjabi - I ordered the Lamb Kadahi previously and it was very light on the sauce, which I should have expected from the menu description.
My boss is vegetarian and loves the Aloo Gobhi. Also they have Tiger Lager (among some other beers - all bottled).
My only issue with the restaurant is the service. The staff can be a little rigid and not very friendly. Its just that they don't really speak very much to you. Also last night we were slow to be waited on after we initially sat down and towards the end of our meal couldn't get our water refilled.
From reading other reviews I would say the staff seems to be the biggest problem so maybe they can whip that into shape. And if you don't really care about a little weirdness from the staff (I don't really) then I've really got nothing but love for Blue Taj.