How to simply root your andriod device without a pc

The easiest way to root any android device running on ice-cream sandwich or jellybean without a pc is by using an apk file...

There are many apk  files available out but the most preferable once are:

(1) Towelroot:This app allows you to unlock the super user with a single touch.

     The link for Towelroot is  http://towelroot.info/

(2)kingroot:It is the most likely app used for rooting any android device.This app also allows to root 

    your device with a simple click

    The link for kingroot is http://www.kingroot.net/down

(3)Framaroot:This app also allows you to root your phone with a simple click.

    The link to framaroot is http://framaroot.net/

    with the help of this apk's you can unlock your super user(root your device).