Check IMEI number original or Not?

To check your IMEI number you have to dial *#06# and that will display your unique 15 digit IMEI number.
To know whether your IMEI number is genuine number or not you can SMS (for GSM handsets) as IMEI15 digits IMEI number and send it to 53232.
For example, type IMEI 976235792100049 and send it to 53232.
As soon as you send the SMS, you should get a reply as ‘Success’, if your IMEI number is Valid, otherwise the reply would be indicated as ‘Invalid IMEI’.
(As the deadline comes closer you may see different mobile operators publishing different way to check your IMEI number validity and giving different numbers instead of 53232.)