S.P.A.S. Nishan, R.H.S.K. de Silva, N.D.N. Jayawardhane Concept of Ayu Vastra, 3^rd  International Conference on Ayurveda, Unani, Siddha and Traditional Medicine 2015, 10^th -12^th December presented and Published in Abstract Book Page 134, Organized by the Institute of Indigenous Medicine, University of Colombo, Rajagiriya, Sri Lanka