Digital Cameras Under £50
I wish to bye one from here.
Digital Cameras Under £100
Or from here.
Please suggest me which one will be better and will capture a outstanding image. But typically suggest me from first site.
Go to a couple of manufacturer's websites, and download the specifications for several cameras. Then go through those specifications one at a time.... if you understand the spec, then move to the next. if you don't, research what that feature means and does and why it's included on the camera.
Once you understand every line on the specs (fps rate, image formats, release modes, etc.), sit down and decide which features you MUST HAVE. Be honest here... you're truly not going to need all the features. If you did, you just as well buy their most expensive camera and save the time and hassle of this exercise.
With your list of 'must haves', find the cheapest camera that has all those features.
That's the camera for you.