I use techno W5 running version 6... and am having difficulty rooting it.. please can somebody help me on procedure to root it.

Using TWRP, rooting wont be an issue that is installing custom recovery.

If you dont understand what am talking about, just give an engineer to help you root the phone if you brick your phone, that is on you.

1. go to play store and download TWRP
2. Install TWRP and follow instructions
3. Open TWRP, and let it install custom recovery on your phone, it will detect if your phone can and install the most needed one
4. After installation, turn off your phone and switch it on to recovery, what you will meet there will be different from the stock recovery
5. Now that custom recovery has been installed, stage one has been fulfilled
6. Switch on your phone and go to google, type supersu.zip
7. download the supersu from their site and place in memort card
8. restart phone into recovery mode, choose install zip, pick the location of supersu and install
9. After installation complete, restart your phone and enjoy root access.