Explore the ancient city of Ujjain which used to be the Prime Meridian of India and the central point for calculation of Indian time. It is strategically located at the intersection of the Tropic of Cancer and the zero meridian of longitude as per the Surya Siddhanta, a 4th-century astronomical treatise. Learn how the science of time and religion come together at the Ujjain temple. At Jantar Mantar, you will appreciate the scientific temper...