Requirements:
CM FLARE S3 Power
Warning: Rooting can void your warranty. Do it at your own risk
Procedure:
Download kingroot install and open apps
Click the green circle then wait until green check appear.
Done! Then download rootchecker in playstore to confirm if rooted.
Enjoy!
If still not work try this kingroot4.1.apk You need internet connection to root.
Credits:
XDA