@Raj-Its easy to do so ill tell you what i have done
How to do light painting.
1)A Tripod or a place where you can keep your camera steady.
2)Will need a dark room at the beginning.
3)Switch camera to manual mode and set the shutter speed to 10.,F to 8 and ISO to 50,Set the timer between 5 to 10 seconds.
3)By using a torch or some lights try something in front of your camera.(once you take some photos will know how to set the Camera to take light painting)