Jantar Mantar

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Jantar Mantar is an Ancient Equinoctial Sundial built during the time of Jai Singh II. There are a total of 5 Jantar Mantars in India, Locations are Jaipur, Mathura, New Delhi, Ujjain, and Varanasi it was started in 1724 and Took almost 11 years to be Completed. It is UNESCO WORLD Heritage Site.


Jantar Mantar was commissioned by Maharaja Jai Singh II in 1724, It was used to study Time and Differences between Plantes and also to study deeply astronomy, Movement of Planets, and Time at different Places. The list of Instruments used are below

  • Samrat Yantra
  • Jai Prakash Yantra
  • Disha Yantra
  • Rama Yantra
  • Chakra Yantra
  • Rashiwalya Yantra
  • Dingash Yantra
  • Utaansh Yantra

Jantar Mantar Architecture

Long Pillar Pillar is constructed with an Axial Angle of 45 degrees and Steps are built. Historians say that Huge Lens is placed in the place of Round Objects and Planets are seen from there. It is also built with Pink Sandstone.

Reason Behind Monument

The primary goals of Jai Singh II scientific reason had been to refine the historic Islamic zij tables, to degree the precise hour at constantly and to outline the calendar precisely.

Another intention turned into to use the cosmological imaginative and prescient deriving from the Ptolemaic one primarily based totally upon astronomical statistics to astrological prediction each social and individual.

Sawai Jai Singh is privy to the Hindu culture of astronomical statistics and he additionally researches all of the astronomy associated books and statistics of Europeans, Islamic, and Persian civilization and collects all of the statistics and adopts the statistics.

That enables him for constructing an observatory. For gathering statistics Sawai Jai Singh II despatched his envoys to diverse components of the world. The emissaries got here again with manuals and astronomical tables except for tones of statistics at the advances made withinside the fields of astronomy.

La Hires’s tables turned into the sort of manuals. The Jantar Mantar is likewise referred to as the renewal version of the observatory of king Ulugh Beg ruler of Samarkand 1339-1449 at Uzbekistan. But it turned into an extra correct examination to Ulugh Beg observatory.

Where Ulugh beg observatory is referred to as a “mistake of its time”. The first high minister of India Pundit Jawaharlal Nehru wrote “now no longer a mistake of its time”.

It took seven years to complete the task. He constructed the primary stone observatory in 1724 in Delhi. The Jaipur observatory of Rajasthan turned into constructed in 1728-1734. King Sawai Jai Singh constructed 3 extra observatories in diverse places. The Jaipur observatory is the biggest and extra correct than others.

Janatar Mantar Observatory

Jantar Mantar is placed close to City Palace and Hawa Mahal of Jaipur. The observatory is series of nineteen geometric gadgets for measuring time and area for astronomy. It is likewise used for staring at the orbits across the Sun.

While the preceding observatory like King Ulugh Beg changed into construct from steel however it changed into much less correct and now no longer use for a lengthy period. So Sawai Jai Singh II determined to construct the observatory devices with stone and marble due to the fact stone lifestyles are longer than steel and does now no longer put on and tear easily.

The devices permit the site visitors to have a look at the astronomical positions with the bare eye. Some of the devices are constructed from bronze.

Jantar Mantar is located in 18,700 rectangular meters of area. The observatory restored numerous instances for the duration of those years in particular in 1902 in British rule and additionally in 2006 and changed a number of the authentic substances of creation with distinctive substances.

It remains in use today, each for coaching and calculation functions, and keeps extra-regular accuracy. Some of the devices make use of are nonetheless thriller for site visitors and the way we are able to use them and the way correct predication they gave in time of 18th century.

And a number of the devices are biggest in global. Now it’s far a part of a National monument of Rajasthan and additionally part of the UNESCO global history site.

Integrity of the Site

The foremost difficulty right here is the wide variety of maintenance and once in a while nearly whole restorations via the centuries. In relation to medical troubles and symbolic significance, the integrity of the modern assets isn’t any much less pleasing than that of the authentic one.

Wherever destruction has taken vicinity that allows you to facilitate restoration, the useful abilities of the gadgets had been safeguarded.

The authenticity of the distinctive gadgets is an extra complicated difficulty. Most of the size graduations have been firstly made from grooves reduce in hydraulic lime plaster surfaces, both left open or packed with lead. Just a few have been made from engraved marble.

However, the twentieth-century restorations tended to extrude this proportion, changing plaster through marble. During restorations, a few staircases have been brought or modified, new substances have been utilized in rebuilding, and the coating of partitions turned into absolutely renewed.

In a few instances, it’s miles hard to recognize the precise look and the specified shape of the authentic instrument. It additionally appears that a few Western re-interpretations of the graduated scales befell at some point of the early twentieth century.


This Site was Granted UNESCO World Heritage Site Status in 2010, This has scientific Importance related to the study of Astronomical Bodies and the Study of Time between the Sun, Moon, and Earth. Based on Cultural and Heritage Category. It is Granted Status.

Best Season to Visit

Summer and Winter is the Best Season to Visit this place.

Entry Ticket Fee

This Place is Maintained by Rajasthan Government, The Entry Fee is Rs 15 for the Nationals of SAARC, For Foreigners it is 200rs. You’ll be charged separately for Videography and Photography.

Travel Route

This is located in Jaipur, There are Air, Bus, and Train routes to Jaipur. From Jaipur City, Jantar Mantar is just 5.2 Km away. Cabs, Autos, and buses are available.

Covid 19 Restrictions

As of July 2021, Lock Down is Lifted in some places in India, Also Few places are restricted as per timings, All Monuments / Parks are open up till a certain time. Further updates will be posted, But International Travelers better skip this season for Travel to India.

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