There are many commentaries on Gita but none has explained the scientific doctrines on which Gita is based. The doctrines are fully vindicated by Physics, Biology and Psychology. This book is not simply a translation of Gita but is a commentary incorporating the doctrines explaining how they compose and work in human psyche and body. It clearly states the socio-economic and political principles laid down by scriptures as interpreted by Bhagavan Shree Krishna. Three introduction chapters lay the base of Gita and the rest is a concise commentary on and translation of Gita.