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Jantar Mantar in Jaipur is the largest stone sundial in the world

Jantar Mantar in Jaipur

Jantar Mantar in Jaipur was built by Rajput king Sawai Jai Singh II, who is also called its founder. Jantar Mantar is a collection of about 19 astronomical instruments. It was completed in 1734. It is the largest stone sundial in the world and is part of a UNESCO World Heritage Site. It is located near Hawa Mahal and City Palace.

Jantar Mantar, Jaipur
Image credit: Inditles

Salient Features of Jantar Mantar Jaipur

  • This monument has many instruments with the help of which we can see the astronomical position with our naked eyes.
  • It consists of three main classical celestial coordinate systems. The first is horizon-zenith local System, the second Equatorial System and the third is ecliptic  system.
  • This observatory has 19 instruments which are used to measure time.
  • They are used to predict eclipses and are used to track the location of stars.This instrument is very big, it is said that the bigger it is, the more it tells the thing more accurately.

The significance of the name

The name Jantar is derived from a Sanskrit word which means machine or instrument and mantra is also derived from a Sanskrit word which means to calculate. Similarly the name Jantar Mantar means calculating instrument.

Behind the making of Jantar Mantar in Jaipur

This Monument was almost ruined in the 19th century. After this it was restored, and was rebuilt under the supervision of Arthur Garrett.

There was a big reason behind making Jantar Mantar. Raja Jai Singh noticed that the object used to observe the celestial objective position was not accurate, namely the jizz.

Then he made 5  five new observatories in different cities  to create a more accurate jiz. 

Also read: Jal Mahal in Jaipur: An architectural wonder surrounded by water

Materials used in construction

Local stones and marble have been used to make Jantar Mantar, with each instrument having an astronomical scale in the inner lining of the marble.

It has been restored many times since British rule from 1902. It has been declared a National monument since 2006. After that, it has been restored.

It is said that the Samrat Yantra, which is Giant Sundial, tells the local time of Jaipur very accurately in even seconds. It is one of the largest sandals in the world, its length is about 27 metres.

Jantar Mantar comes under Jaipur archaeological Sites since 1961 and it comes under National Monument of Rajasthan since 1968.