You can find your IMEI number by pressing the following keys on your phone: * # 06 # (This works for most of the sets). This would help the authorities track it down in the event of its loss or theft.
Note that every network provider also has an EIR - Equipment ID register. In case the handset is lost/stolen, the IMEI number is reported to the police and the network provider. When the stolen phone is switched on, the IMEI number is communicated to the company and they can match the EIR with that of the IMEI number.
If you want to find out whether a Cell Phone bearing a particular IMEI number was reported to be stolen in any of the police station all over India, enter IMEI number in the box along with its Make & Model, and SEARCH. IMEI/Serial number be entered as per this example : 359400001920213 (Don't leave any spaces while entering the numbers)
