Can I use cloth that came with sunglass to clean camera lens ?

Lens cleaning paper is cheap. Use the lens paper.
You can buy a package for under a few bucks at any camera place.

The cloth is probably ok as long as you don't get any dirt/grains in the cloth that could scratch the lens.

yes you can they are made of same material as a glasses cloth I am optician of 13 years so its safe

You should not do it, it most likely will scratch your camera lense

Lenses are VERY expensive and scratching one is a disaster. It's best to never actually touch the lens unless actual dirt or grime gets on it. If that happens, use special cleaning tissues (these don't leave small particles behind like most cloths). Use this with a special solvent made for this purpose.

But, for dust, the best thing to use is dust remover spray that is for computer and electronic components. This can blow any dust off the lens without physically touching it. 99% of the time, this is what you should clean the lens with.

better potion will be chemoi leather......instead of that cloth..... i myself use it from more than an year it really good........OR..... give it to ur camera dealer , he may do it for u ......!!