Jaipur, the cultural hub of Rajasthan, is certainly one of the most up to date visitor locations of India. The whole city was once constructed in line with ‘Vaastu Shastra’. Once we speak about the prominent attractions in Jaipur, Jantar Mantar proves to be an interesting one. This predominant Rajasthan monument boasts of being the biggest stone observatory of India. Developed with the aid of Maharaj Sawai Jai Singh II in the interval 1727-1733, Jantar Mantar is among the five observatories of India. The Jantar Mantar observatory in Delhi can also be constructed by means of Maharaja Sawai Jai Singh.
The name ‘Jantar Mantar’ is derived from the Sanskrit word ‘Yantra Mantra’ which means ‘instruments and formulae’. The monument has a large array of astronomical devices which might be believed to give correct information even at present. Maharaja Sawai Jai Singh II, the Rajput ruler of Amber and the founder of Jaipur, was himself a first-class builder and an high-quality astronomer. He built the Jantar Mantar to observe the mysteries of the Cosmos. The instruments have been constructed keeping in mind the principles of astronomy, and the function of the equator, latitudes and longitudes.