I was in Hyderabad last week and will be checking out the food there, in particular Haleem and Biryani, all over again. And yes, I agree with Pravin Nair, waistline be damned, the biryani there is just wonderful.
Biryani is the ultimate test for a chef. As a rule, whenever I go to a restaurant where I might be going back again, I try out the biryani and that too the beef/lamb/goat type. If that works out, then the restaurant is perfect.
How do you make it? Here's a video.