.Kulatunga, R.D.H and Priyangani , A.R.R. C ,Impact of Etiological Factors of Pakshagatha among  Middle age  Patients – An Ayurvedic Perspective,Annual Research Symposium on Engineering  Social Transformation through  Research & Development 8th – 9th June  ,U.G.C Auditorium& SLFI,  Colombo SriLanka 2015