For Rooting LEWO ROM Download this zip file and flash it through CWM and Reboot the phone:-
If you don't like this ROM or face any issues then you can revert back to your old ROM from the backup which you created before flashing.
**Make sure you backup all your apps, app data, contacts, sms,etc using some apps like Titanium backup or My Backup Root. You can also restore this from cwm backup using titanium backup pro.
Credits: Manish Singh, xda post
**Note: We are not responsible for any loss of data to you nor if your phone is bricked. But will help you to restore it. Make proper backup before flashing.