Its over 5-6 years that i have been absent from this great social and educative network and i say top up to the owner and those working with him to keep this network, i never knew by account will still be intact. Have been reading some thread where people complain about their inability to root their android phone except the popular TECHNO phones, not too worry, have got a simple ways you can do that which is not restricted to any phones.

Why root Android phone?

Rooting will grant you superuser access to the
system and will allow you to do things that you
might have otherwise been restricted. Depending
on the type of user that you are, the level of
customization may vary. Some users are more
demanding and want to completely overhaul
their device, while others might just want to run
a couple of application.

Advantages of Rooting

Overclocking.
Underclocking which can help save battery for
those times when you might not need the phone
(i.e. sleeping, in the cinema, at school, etc).
Mods to improve battery life.
Access to apps that might require superuser
permission (i.e. Titanium
Backup , DroidWall and SetCPU ).
Removal of bloatware such as apps preinstalled
by manufacturers or carriers.
Deeper customization i.e. tweaks to the phone’s
UI.
Flashing ROMs such as CyanogenMod and MIUI .

Procedures for Rooting

There are many complicated ways of rooting but click 1 root seems to be the easiest to me.

To use 1-Click Root, just download it and attach
your Android phone to PC(Windows XP/Vista/7/8
Supported) via USB cable. Then root your
Android phone in one click.

How to use 1-Click Root?

Step 1: Download 1-Click Root.

Step 2: Run 1-Click Root in Windows.

Step 3: Root your Android phone.

Step 4: You can also unRoot your Android
phone.

Supported Android OS and OEMs
Android 2.2/2.3(Gingerbread) 、4.0(ICS) 、
4.1(JB)

What about kitkat?