Biryani in Warangal is a weekend ritual, not a dish. Here is the honest map, from Paradise to the old Chowrastha handis that sell out by lunch.

Biryani is not really a dish in Warangal. It is a weekend ritual, and every family has a counter they defend like it is a cricket team. Ask ten people for the best biryani in the city and you will get ten answers, half of them delivered with the certainty of a court verdict.
The local style leans spicier and drier than the Hyderabad plate most outsiders know, with a heavier hand on the fried onion and a sharper mirchi ka salan on the side. That difference is exactly why people who grew up here keep coming back.
Paradise Family Biryani Point is the safe, consistent choice for Hyderabadi-style dum, and it draws the heaviest lunch footfall. For the local style, New Shalimar Biryani Hotel and Green Bawarchi have long-standing loyalists. The older kitchens around Chowrastha run big handis that clear out fast on Sunday afternoons, so the mutton is gone well before the rice.
Pre-order mutton on weekends. It is the first thing to vanish. Do not skip the raita and the salan, because the Warangal plate is built around that balance and feels flat without them. And order light the first time, the half plates here are generous.
The newer fine-dine rooms like Bayleaf do a polished version with better seating, but the soul of Warangal biryani still lives in the older, plainer counters where the handi is the only decor. Go hungry, go early, and bring people who will fight you for the last piece.