I believe I found one of the true hidden gems of Calgary. Puspa is a very small family run restaurant hidden in a street mall. We went there for lunch in a group of 4. The lunch menu is small but super cheap. You have 4 options of curry (10$ each) which also includes salad, Chai, soup and desert. Great deal. You also have the option of choosing food from the full menu which we did.
We ordered the chicken curry (8$) and lamb biryani (13$). I asked for the spicy version. Also to cool it down, we asked for yogurt (Highly recommended). Both dishes were excellent. The portion size is huge. The biryani was easily good enough for two people. So make sure to go there on a big appetite. One quick note: the spicy is super spicy (Be careful). We finished the meal with rIndian rice pudding and chai which was fantastic.
Very good service, excellent food and in my opinion authentic taste . Definitely not your standard butter chicken joint. I cannot wait to go back there to try other items on the menu.