This book is a compilation of series of lectures given by the Author many years ago on Bhagavad Gita. This series of 3 volumes each dealing with 6 chapters of Bhavad Gita, were published by the Author's son M. R Sampathkumaran for the benefit of larger audience. Vol-1 contains first 6 chapters and was published during the life time of the Author. Author's untimely demise during the the preparation of manuscript of the Vol-2, delayed the publication of further volumes, but finally completed with the help of Sri M B Varadaraja Aiyengar and his son M B Narasimha Iyengar. Their efforts and the perseverance of the Author's son have ensured accurate publication of the lectures of the Author. It is a good book for English speaking people and the author has explained the intricacy of what Bhagavan Krishna said in Mahabharatha. This book is Vol-3 the last 6 chapters of Bhagavad Gita.