Or less dramatically, if you have a Chinese mobile -- most of which do not have IMEI numbers -- there is need to worry, as the ICI (Indian Cellular Association) will be imposing a ban on the use of such cellphones starting midnight tonight.

IMEI numbers or International Mobile Equipment Identity numbers are unique numbers assigned to each handset. In case of loss or theft of cellphones, these can be used to track your mobile.

Often, stolen phones are sold with their IMEI number erased, or using an IMEI number from another cellphone. As such, ensuring that each cellphone which is operational is using a unique IMEI number has obvious benefits.

Additionally, terrorists can take advantage of blank or cloned IMEI to make their phones difficult to track.  This is a good move for the security of the country, and will additionally aid in reduction of cellphone thefts too.

If you are not too sure about your phone (and even otherwise) you can test the authenticity of your IMEI number by sending a message to 53232 "IMEI <your IMEI number>" You can find out your IMEI number by pressing *#06# on your cellphone.

For people who think their IMEI number is not authentic and wish to get a genuine IMEI number implanted into your cellphone,  you can visit http://www.msai.in/listofcentre.php for a list of MSAI (Mobile Standards Alliance of India) centres. All you need is a working handset and a proof of ID and Rs. 199/- for your sins.

Find out more at the MSAI website