Course Introduction: The glorious tradition of science and technology existed in India for thousands of years. There are many examples. PushpakViman is just a glimpse. Our clothing and garments (such as the Malmal of Dhaka) attracted the attention of the whole world. Kanhaiya was the owner of a very big yacht; after whom Vasco da Gama reached Kalikat. Metallurgy was so advanced that it did not rust for hundreds of years. The knowledge of physics and chemistry was so much that gold was made from any ordinary metal. Planetary and astronomical knowledge was so much that the earth is round and the distance between the sun and the moon was measured by our ancestors. How the eclipses happen, the speed of the constellations, the creation of the universe etc. all these subjects were discussed here by ordinary people too. The health system from Ayurveda (in which the first surgeon likes Sushruta) was created in India. Zero and Decimal system is a priceless gift of India to the world. Geometry and algebra, Madhava principles were prevalent in India. Indians were proficient in biology, tree Ayurveda, environment, animal science, elephant and horse science, martial arts, weapons and warfare, city building, sewage system, water management, mining work, ironwork, gemology. We have lost a lot not known how but due to the inferiority complex and dastardly invasions and due to the policies of the British. Now we have to revive the science and technology of India. It is necessary for every Indian to have knowledge of this glorious Indian science and technology tradition.