Upanishad by Prof. Chittaranjan Das is a seminal work in Odia literature that delves into the profound philosophical and spiritual teachings of the Upanishads, the ancient Indian scriptures that form the foundation of Vedanta philosophy. Through this book, readers are guided on a spiritual journey to explore the timeless wisdom and metaphysical insights contained in the Upanishads, shedding light on the ultimate truths of existence and the nature of reality.