http://kissingmatters.com/pucker-up-furry-lips-10-species-kissing-in-the-animal-kingdom/
Kissing isn't universal, though it does pop up in some 90% of cultures. Darwin himself noted that there are cultures in which kissing is conspicuously absent.
It is unknown with the [Maori] New Zealanders, Tahitians, Papuans, Australians, Somals of Africa, and the Esquimaux [Eskimo].
For one thing, other species kiss as well. Chimpanzees do it in order to reconcile following a fight, and bonobos do it with some tongue as well.
In a 2008 issue of
Scientific American Mind the writer Chip Walter argued, citing British zoologist Desmond Morris, that kissing may have originated from the primate behavior of pre-chewing food and passing it to the kids. Chimpanzee mothers, for example, are known to chew food and before swallowing they press their lips to the lips of their youngsters to allow the food to pass into their mouths. The pressing of lips may have then become a general means for relieving anxiety. Basic classical conditioning would suggest that by pairing lip stimulation with food, simply touching the lips would eventually trigger feelings of pleasure. Add to that the overabundance of nerve endings in the lips, and you have the recipe for ecstasy.
http://www.bbc.com/future/story/20150112-why-do-we-have-lips
Not everything originated in Vedic cultures. I know currently is is a fad in India particularly with India-zeolites to claim everything. I am proud of our ancient culture, but it had its limits.