The author is a pediatrician from Narsapur,AP,India working on self-inquiry for the past 30 years.He wrote many books on that subject which include Insights in self-inquiry,The comprehensive book on self-inquiry,The Alpha and Omega of self-inquiry,The theory and practice of self-inquiry,The essence of self-inquiry,The genesis of self-inquiry,Know Thyself.He wrote many books in his native language Telugu which include Nenevadanu?,Nija Vichararana,commented on Ramana Maharshi's Upadesa Saram and Akshara Mana Malai,Vichara Chudamani and Vichara Chandrodayam in which he dealt the practical aspects of self-inquiry and showed self-inquiry is direct path to Self realization because in this method the ego itself is destroyed once and forever unlike other spiritual methods ego is very much kept intact in the name of doing spiritual practice.Many of his books are available in e-book form also.