Rooting Android Device is an important thing to do when you get your android as it enables you to explore so many features that has been restricted to non-super user.
Installing SU gives you the full control over your phone such as tweaking your imei, running some useful apps, etc.
There are several ways of rooting android phones but this one about to show you seems to be the easiest and fastest as you don’t really need to be on a PC before getting this done.
The Software that allows you to root your mobile phone is called FramaRoot.
How to Use
Download Framaroot App and Install on your phone
Goto Settings => Security => and check/tick “Unknown Sources“(skip if you’ve already get this done)
Enable USB Debugging on your phone. This can be done by accessing Settings => Applications => Development => tick/check USB debugging
Open the installed Framaroot application on your phone.
Choose Install Superuser
You should now see few options available (exploits) on the screen. Just click on the first one.
If you get a message that says “Failed … Try another exploit if available” then repeat step by choosing another exploit.
If you get a message that says Success … Superuser and su binary installed, then You have to reboot your device.
Now you have successfully root your phone, You can then download Rootchecker from Playstore to confirm the Root Status of your phone.