Alternatively known as the holy basil or ocimum sanctum, tulsi is a common name in most Indian households. Easy to grow and widely found in the Indian subcontinent, not only is tulsi a revered, holy plant in Hinduism; it also finds its place in the ancient science of Ayurveda. Tulsi is commonly found in two varieties – the green coloured Lakshmi tulsi and the purple hued Krishna tulsi. Apart from the Indian subcontinent, it can also be found in tropical regions of most Southeast Asian countries.