It's not hard to make gradient lighting like this using Photoshop:
But I want to make the lighter part as a point in the center, with gradient along radials.
How to do it?
Before drawing the gradient with the gradient tool, click any of the gradient modes on top of the screen in the options bar:
The one circled is the one you want for a radial gradient.
In case you don't have the options bar visible, you can activate it in the 'Window' menu by clicking 'Options'.
If you're drawing your gradient using a gradient overlay layer style, you'll want to search out the 'Style' option in the layer style dialog box. Choose 'radial' there for the effect you're looking for!