What is Tulsi and Basil?

Tulsi is type of a basil grown in India

There are four types of Basil that are close in taste and flavor, that may be used in cooking interchangeably. In Italian cooking, Sweet Basil is used exclusively. In India, there are three primary varieties, Krishna, Rama, and Vana. Tulsi normally refers to Krishna, also known as Holy basil, primarily used for religious rituals.
Sweet Basil: Ocimum basilicum
Krishna Tulsi, Holy Basil: Ocimum sanctum
Rama Tulsi: Ocimum tenuiflorum
Vana Tulsi: Ocimum gratissimum
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Vana Tulsi grows wild in parts of India.