The Set Contains 12 Books Svetasvatara Upanishad, Chandogya Upanishad, Mahanarayana Upanishad, Kena Upanishad, Taittriyopanishad, Aitreyopanishad, Brihadaranyaka Upanishad, Mundaka Upanishad, Prasna Upanishad, Isavasya Upanishad, Katha Upanishad, Mandukya Upanishad. This Upanishads constitutes the supreme achievement of Hindu thought. The sublimity of their soaring meditation the infinite range of their outlook on life their fearless exposition of Soul-consciousness their determined assertion of the verities of Existence and lastly their broad synthesis of Knowledge and experience have all joined to evoke towards in the Hindu heart a feeling of profound awe and respect and made it love them as Divine Revelations from the immemorial past. Moreover to an aspirant of spiritual truth this Upanishads shed a light unseen in any other scripture or literature of the world.