Biriyani Zone serves authentic, Hyderabadi style dum biryani cooked over a wood fire, which brings out the best flavours from the rice as well as the meat. Let me warn you, this biryani is not for someone who cannot handle spicy food. And for somebody who can handle it, ask for the double masala in your biryani, it's super spicy you will start sweating through your scalp. Though their mutton biryani comes highly recommended, I haven't tried that yet.
Apart from their biryani, their tandoori dishes are good, must try from my long favourite list would be the chicken sholay kebab, and the chicken lollipop. They do have a minimal dessert offering, the Qurbani-Ka-Meeta with a scoop of butterscotch ice cream is the only way to cool down this spicy biryani.
Whenever my colleagues from the city, argue about which is the best biryani, I always challenge their choice by recommending Biriyani Zone. But unfortunately, to try this goodness, you have to make a trip all the way to Kundalahalli, crossing over the Marathalli flyover. I know, it's a little too much to ask for, considering Bangalore traffic. But hey I can confidently say that the trip to this biryani paradise is worth every pain you take to reach here.