I have been using Justdial.com for many years to search for local businesses. It is a pretty decent search service especially when you are away from the internet - you can just call up the number and they will sms you the required information. However, if you were to use the internet, I prefer Google Local Search.
For example: You wanted to get a list of pre schools in the national capital region, would give you instant result of Pre schools and websites which contain a comprehensive list of pre-schools etc with location maps and and phone numbers.
This makes your life so much simpler. I personally like the way the content is placed and the location map support.