I have been visiting this restaurant since years and am a really big fan of it's biryani! Here's my take:
Shahghouse, situated in the amidst of busy tolichowki suburb, serves one of the best Hyderabadi dishes in the city. The ambience is calm and well lit. Price is comparatively low ( u get mutton/chicken biryani for 6 people at Rs.540/- ) The taste of tandoori chicken, chicken masala, etc is good too.
The only complain I have with this place is the service! It is very slow and sometimes the waiter totally forgets our order! Really pathetic!
However, I would definitely recommend you to visit this place if u r in the city.