Before registering your mobile, you need to know the IMEI number first. The IMEI number of the officially imported mobile phone is initially registered by the importing company.
The IMEI numbers of mobile phones that came as gifts from abroad and were bought personally and illegally imported are not registered. Some of the mobiles bought in Nepal may not have IMEI number registration.
The IMEI number of the older phone is not registered at all. Because, it has been three and a half years since NEA started registering IMEI. So it would be wise to find out the IMEI number of your mobile and register.
For that, the mobile user has to dial *#06# then You can see the IMEI number of your mobile by dialing. If the mobile supports only one SIM, it shows only one IMEI number.
If two SIMs are needed then there are two IMEI numbers. If there are two, both IMEI numbers have to be registered with the authority.