1) Install Xposed Framework From Here
2) Module And Click On Framework And Click On Install Give Root Permissions To App And Reboot Your Device
3) After Reboot Download Imei Changer Module from http://m.aptoide.com/ After Install Imei Changer Open Xposed Framework And Enable Imei Changer Module Then Reboot Your Device Once Again
4) After Reboot Device Open Imei Changer And Enter Imei Which You Want And click on Save And Turn Airplane Mode On/Off And then Check Your Imei Will Be Changed
Now Dail *#06# And You Will See You Successfully Change Your ip Address
NOTE :-
This iS Only For Educational Purposnal imei Change is Illegal in Our Country. Try iT Your Own Risk