Holy tulsi basil plant....

http://hinduism.about.com/od/ayurveda/a/tulsibenefits.htm

Tulsi or Tulasi (Ocimum tenuiflorum) or Holy basil is a sacred plant in Hindu belief. Hindus regard it as an earthly manifestation of the goddess Tulsi, a consort of the god Vishnu. The offering of its leaves is mandatory in ritualistic worship of Vishnu and his forms like Krishna and Vithoba.
Many Hindus have tulsi plants growing in front of or near their home, often in special pots or special small masonry structures. Traditionally, Tulsi is planted in the center of the central courtyard of Hindu houses.
The plant 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, commonly used in Ayurveda.--Source:Wikipedia

 

Gymnema Sylvestre... ayurvedic herb....

Gymnema sylvestre (Sinhala: මස්බැද්ද / Masbadda)(Malayalam:ചക്കരക്കൊല്ലി ,Tamil:சிறுகுறிஞ்சா) is a herb native to the tropical forests of southern and central India and Sri Lanka. Chewing the leaves suppresses the sensation of sweet. This effect is attributed to the eponymous gymnemic acids. G. sylvestre has been used in herbal medicine as a treatment for diabetes for nearly two millennia,^] and though there is insufficient scientific evidence to draw definitive conclusions about its efficacy two small clinical trials have shown gymnema to reduce glycosylated hemoglobin levels. Common names include gymnema,  cowplant, Australian cowplant, gurmari, gurmarbooti, gurmar, periploca of the woods, meshasringa (मेषशृंग), Bedki cha pala (बेडकीचा पाला) and miracle fruit (also a common name for two unrelated plants). [source: Wikipedia]