Representing Sri Lanka Herbal Medical Sector, Topic: Current scenario in herbal medicine in Sri Lanka, The Associated Chambers of Commerce and Industry of India(ASSOCHAM ), 4th annual Herbal International Summit cum Exhibition on Medicinal &Aromatic Products, Spices and finished products(hi-MAPS) at NSIC, Okhla Industrial Estate, New Delhi on 14 -15 April, 2012Acute toxicity study on hot water extract of Tragia involucrata Linn. in rats