how to navigate a robot

i need to navigate my mobile robot and make it as autonomous robot.first will any one tell me how to navigate a robot. what should i use to navigate it. please...

Google "robot navigation" for a lifetime of interesting reading.

hii jremington....what are you telling ....i need to do it man ...

A simple autonomous robot is a line follower. There are dozens of projects if you search for "arduino robot line follow".

If you have robot kit such Lego Mindstorms, there are line following tutorials specific to robot kits.