Hindu practices have the solid backing of science, which is not known for many. There is a science behind the Hindu practice of greeting each other with the folded hands and worshipping gods with the folded hands. People are greeted with the folded hands using the words “Namasthe”, “Namaskaram”, “Vanakkam” and many such words. This is an action done by Hindus when they visit temples and worship the deity.
It is a symbol of showing extreme respect and acceptance of the fact that we are facing something of divine nature. We do the same thing when we meet somebody and this implies that we are recognizing the divinity person in every person and respecting that divine. This is seeing every Human being as a divine person irrespective of his caste or religion. This forges a bond between us and the person on a transcendental level and not just on the physical level.
There is also a scientific reason behind this. Modern science of reflexology says that the tips of human fingers carry nerves to each and every part of the body and hence when the palms are joined together every time we encounter someone, the fingers get in contact with each other and trigger these pressure points so that the corresponding parts of the body gets more active.
Another point also should be noted here. The habit of shaking hands is not a healthy practice as the opposite person may be carrying some germs which will pass to the other person, when he comes in contact. Thus, the Hindu way of greeting other person with the folded hand is a better idea than the western idea of handshake.