Did you know that you can find phone number of Pizza Hut or Dominos in a Jiffy?
Here is how you do it…
In case if you are not in front of a computer, call JustDial by dialing 040-24444444 and ask for the information or the phone number you need. They will SMS the information to your mobile..
Otherwise,
You can access their site http://www.justdial.com to get the same information.
The other way of finding that info would be Google’s Local Search http://local.google.co.in, I guess you know how to use this one.
The other source of information would be http://yellowpages.sulekha.com
There are a lot more options to choose from, I have used these services and are very effective.
Ignore this post if you already knew this information 
Wow! That’s some wonderful info!
All I knew was , one could call o4o-4o4o4o4o to get the number of any establishment or service in Hyd.
In fact you can call the Justdial number (39999999) to get info of all the 46 cities where Justdial have a presence.