Hello Readers, Myself Dr.Medhavi Agarwal. I have done my M.D in community medicine from B.J.M.C Ahmedabad (Guj). At present I am working as Asst. prof. in Community Medicine department in RMRI Bareilly (U.P).This book is one of the rare study conducted in India .our system lack data and study on mental illness so its an attempt to fill the gap.