I am a beginner photographer. How to capture this kind of photograph. Any technique?
For an image like that, a "fisheye" lens was used. This is a specialized lens that covers an extreme wide angle.
As MikeW said, it is a fisheye lens. A fisheye lens is generally recognizable from it's characteristic dome shape. It bends the light far more than a typical flat lens and is therefore able to capture an exceptionally wide field of view, but since it is semi-circular, it ends up distorting the edges of the image with the characteristic curvature that you see.
A fisheye lens was used. It is often used for a comical effect, but they can be very expensive, especially for a beginner.