Basil most popularly known as Tulsi has been used for thousand years in Ayurveda for its diverse healing properties. Holy basil is both a religious symbol as well as good medical remedy. India and medically speaking it is used to treat common ailment in the ancient Ayurvedic healthcare system. Holy basil does wonders, acts as a natural immune system booster and keeps infections at bay. It protects against nearly all infections from viruses , bacteria , fungi and protozoa.