All mobile phones are assigned a unique 15 digit IMEI code (International Mobile Equipment Identity) upon production. Below you can check all known information regarding manufacturer, model type, and country of approval of a handset.
IMEI number can be found on most of the mobile handsets and in India it is prohibited the usage of mobile phones without a valid IMEI number.
IMEI can be retrieved in two ways
1) type *#06#
2) check compliance plate under the battery.
How to verify the validity of IMEI number
Once you identified your IMEI number you need to verify whether it is valid by submitting it to the below link and verify the manufacturer and model number.
Verify the validity of IMEI number