Holy basil or tulsi (aka thulasi), is an aromatic plant that hails from the family of Lamiaceae. Tulasi is cultivated for religious and medicinal purposes and for its essential oil. It is widely known across the Indian subcontinent as a medicinal plant and a herbal tea. It is also an essential ingredient in most Ayurvedic concoctions. Tulsi is revered as an elixir of life. The oil is obtained by the steam distillation of over ground parts of the plant, Ocimum sanctum. The product is pale yellow to yellowish in colour, with the sweet and pungent characterisic odour of Eugenol. Eugenol and Caryophyllene are major components in Holy Basil Oil. This oil is mainly used in medicinal and flavouring preparations.