Indian Mobile number regular expression

I am currently working on site named vpay. I am not going to write about vpay here as vpay does not have anything to do with Programming.

One of the requirement was to validate a mobile number and that too it has to be a vlid indian mobile number. A quick google search led me to this

^([9]{1})([234789]{1})([0-9]{8})$

If you are still searching for a regular expression to validate indian mobile number, now you know where to come!