The study of Mahabharata, the only surviving historical document, enables one to know about the scientific and cultural legacy of great India. This paper tries to unravel the scientific and technological advancement of India at the age of Mahabharata, i.e. 5000 years ago when Indian civilization was at its pinnacle. This study would help proper portrayal of India's past scientific achievements thereby recognition of India's contribution to the world civilization in science and technology.