What is an alternate way to Switch Off mobile without use of Power Button?

Device : MMX A89
OS : ICS 4.0.4

What is an alternate way to Switch Off mobile without use of Power Button? Can we Switch Off from OS itself? Is there any setting available? Or Does it require to install any further app?

Answer

There are some apps who have this feature, Like switch off, reboot and etc.

One of them is Notification Toggler , This app isnt particularly for switch off and reboot stuff, but you can do that also. :)

EDIT::

I think you have to root your device to use reboot and shutdown , You can't do it without Root unless applications are signed with the System Firmware Key. And playstore applications aren't that kind of applications that are signed with that.

EDIT 2:

To root your Device , Check out these links,

Link 1

Link 2

Link 3