Basil also known as French Basil or Sweet Basil or Tulsi is an erect glabrous herb, 30-90 cm high is indigenous to India. The leaves of basil have numerous oil glands with aromatic volatile oil. The herb bears cluster of small white lipped flowers in racemes. The freshly picked bright green leaves turns brownish green when dried and become brittle and curled. The major types are American Basil, French Basil, Egyptian Basil and Indian Basil.