Jantar Mantar, New Delhi

Jantar Mantar, New Delhi


Jantar Mantar the scientific heritage of India. An observatory. Designed by Maharaja Jai Singh II in 1724. Functioning for seven years. Jai Singh II a ruler of the noteworthy state of Amer. “The structure well-preserved by the Archaeological Survey of Republic of India (ASI) and has been confirmed as a secure monument to a lower place the ASI Act.

Jantar Mantar situated in the most famous and advanced town in the city. It comprises 13 architectural astronomy tools. The place one among 5 designed by Maharaja Jai Singh II of Jaipur, from 1723 onwards, as he given by Mughal emperor Muhammad Shah the task of reviewing the calendar and astronomical tables. An inscription affixed on one amongst the structures within the Jantar Mantar observatory in Indian capital that placed there in 1910 erroneously geological dating the growth of the complex to the year 1710.

Later analysis, though, suggests 1724 as the actual year of construction. The primary purpose of the observatory to compile astronomical tables and to predict the days and movements of the sun, moon, and planets. Some of these functions today would be classified as natural philosophy. Completed in 1724, the Delhi Jantar Mantar had decayed significantly by 1867. The Ram Yantra, the Samrat Yantra, the Jay Prakash Yantra and therefore the Mishra Yantra area unit the distinct instruments of Jantar Mantar.

Jantar Mantar
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Located in the Parliament Street, south Connaught Circle of New Delhi, Jantar Mantar a vast observatory built to help and improve upon the studies of time and space as known. Designed by Prince Jai Singh within the year 1724 and forms a vicinity of a set of 5 such observatories situated in Jaipur, Ujjain, Varanasi, and Mathura. Delhi’s Jantar Mantar consists of 13 architectural astronomy instruments which can be used to compile the astronomical tables and to predict the movement and timings of the sun, moon, and planets. The intelligent construction and placement of those instruments allowed the observer to notice the position of heavenly bodies with their optic alone.

Jantar Mantar delhi
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Jantar Mantar observatory consists of masonry designed astronomical instruments that have stood the check of your time and still work likewise as they did within the past days. Maharaja Jai Singh II of Jaipur keenly curious about these astronomical observations and therefore the study of all the systems, and this observatory erected by him upon the instructions of Muhammad Shah. Built out of brick, rubbish so plastered with lime, these instruments are repaired and remodeled from time to time while not creating any vital alteration.

The equipment here pertains to Egypt’s Ptolemaic natural philosophy and follows 3 classical celestial coordinates to trace the positions of heavenly bodies- specifically horizon-zenith native system, the equatorial system, and the ecliptic system. There are four primary devices constructed here: The Samrat Yantra, the Jai Prakash, Ram Yantra, and Misra Yantra. There lies a small temple of Bhairava to the east of the main site and even that built by Maharaja Jai Singh II.


King Sawai Jai Singh an accomplished scholar himself and commissioned the task of confirming and rectifying the current data available on the movement of celestial bodies by Emperor Muhammad Shah. Jai Singh wanted to refine the ancient Islamic tables so that the exact hour of the day could be determined. Eventually, he wished to outline an exact calendar and create correct pseudoscience predictions for each individual and social profit. To achieve this, he engineered Jantar Mantar within the year 1724 and therefore the observatory in the metropolis the primary one to be engineered. Eventually, different observatories were made in Jaipur, Ujjain, Varanasi, and Mathura as well. After unceasing efforts on the part of the govt to revive it to its former glory, Jantar Mantar currently a preferred traveler destination notable everywhere the country.

jantar mantar
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Major Instruments at Jantar Mantar

There square measure numerous instruments at intervals the observatory of Jantar Mantar in the capital of India, specifically Samrat Yantra, Jay Prakash, Misra Yantra. The Samrat Yantra could be a large triangle that seventy feet high, 114 feet long and ten feet thick. A timepiece meant to live the precise time of the day with the accuracy of 0.5 a second. Although at that point sundials did exist already, however, Samrat Yantra a revolutionary one because of extraordinarily precise and will be accustomed to living the declination angle of planets as well.

Jayaprakash Yantra consists of hollow out hemispheres with some marking on the bursiform surfaces. An observer will align the position of a star with numerous markings or a window’s age from within. The Misra Yantra designed so as to see the shortest furthermore the longest days of a year. It additionally indicates the precise moment of an hour in numerous cities and locations notwithstanding the gap from Delhi. Interestingly, the Misra Yantra that the sole tool within the observatory that designed by Raja Jai Singh. There additionally a Ram Yantra that represents the 2 circular buildings to the south of Jai Prakash.

Jantar Mantar
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Structures inside Jantar Mantar

Samrat Yantra

The Samrat Yantra measured the correct time of the day. It additionally measured the declination of the sun which seen by the shadow traveling the structure.

The Ram Yantra

It consists of two large buildings with an open top. Both buildings form a complete device. The device employed to live the altitude of stars that are like the latitude and also the great circle on the planet.

The Jai Prakash

The Jai Prakash shows the sun’s position at the time of the equinox. There a hole near the bottom of the structure which witnesses sunshine only once in a year that on 21 March, called vernal equinox.

The Misra Yantra

It consists of five instruments. Pillars on the southwest of Mishra Yantra square to measure the shortest day (21 December) and also the longest day (21 June) of the year.

Famous places Near Jantar Mantar 

  • Rashtrapati Bhavan
  • India Gate
  • Gurdwara Bangla Sahib
  • Humayun Tomb
  • Agrasen ki baoli

How to reach

The Delhi Jantar Mantar open to the public from 10 am to 6 pm. However, the entry to the current wonderful astronomical observatory free.  Although its location at the City Centre adjacent to the well- known Connaught Place, you can easily reach Delhi Jantar Mantar without much hassle. If you visit the capital town of the latest Old Delhi, do not forget to have a glimpse of Jantar Mantar-a beautiful creation of the Jaipur King.

Jantar Mantar found within the heart of Old Delhi town hence easily accessible by road and metro rail. The nearest underground station to Jantar Mantar Patel Chowk. Tourists also can take native town buses similarly as auto-rickshaws and taxis to succeed in here. Jantar Mantar found on the Sansad Marg in Connaught Place, New Delhi.

Map of Jantar Mantar


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