Jantar Mantar

Jantar Mantar – Things you should know about astronomical observatory

Places To Visit


Built by Maharaja Jai Singh II, Jantar Mantar is an astronomical observatory. He was not only the founder of “Pink City Jaipur” but was an astronomical scientist also. It took 6 years to complete the construction of this unique historic monument. This observatory was built between 1727 and 1733. The name is derived from Sanskrit words Yantra Mantra which means instruments and formulae in English. The king had built the Jantar Mantar to understand the exact mechanics of the Cosmos. The instruments were built after keeping in mind the positions of the sun, planets, longitudes, latitudes and the equator. It was damaged in the 19th century and restoration was undertaken in the year 1901 by an amateur astronomer Major Arthur Garrett. However, in 1948 it was announced a national monument.

Architectural beauty

It comprises of nineteen exclusive geometrical shapes, each having its specific function for astronomical measurements. Brass and stone are the two major materials used in the construction of these instruments. It features the world’s largest stone sundial, an instrument to measure harmony of all celestial bodies. This master instrument which is approximately 27 m in height is called the Giant Sundial. Also known as Samrat Yantra, this instrument displays almost the correct time of the day up to the accuracy of 2 seconds of local Jaipur time.

The reason behind its accuracy is its height. The shadow of the Giant Sundial moves according to the movement of the sun. The accurate reading is that the Giant Sundial moves 6 cm/m. It has an observation deck is used to predict the movements of the planets to predict the season. Earlier this deck was used to predict monsoon for the farmers by local astronomers.

jantar mantar jaipur
Courtesy: wikipedia.org

Prime attraction

There are many astronomical instruments present in Jantar Mantar which impresses many tourists with the intelligent artwork of ancient people. It leaves them stunned how they designed such a wonderful monument without using any mechanical technology. It is UNESCO world’s largest heritage site. There are a wide variety of instruments of astronomy that still provide the correct information even today. This unique architecture of Jantar Mantar is one of the best places to visit in jaipur. In order to understand the working of the various instruments and to know what these instruments indicate you can avail the services of a local guide. The light and sound show at the Jantar Mantar is also worth your time, which gives you a detailed insight to Jantar Mantar history.


It is one of the most popular place to visit in Jaipur, located near the gates of City Palace at Gangori Bazar.

Entry fees

  • Rs. 50 for Indians and Rs. 200 for foreign tourists

Visiting Hours

  • 9:00 am to 5:00 pm

How to reach

It is Near to Merta Road Junction Railway station. You can either walk or hire a cab from the station to reach Jantar Mantar. You can easily get buses from various parts of the city. The monument is located at a distance of about 5.2 km from Jaipur Railway Station and 13 km from Jaipur Airport.

Best time to visit

The best time to visit Jantar Mantar is during mid-day. This time the Sun is vertically above and it is easy to understand the working process of each instrument.

Best time to visit

The best time to visit Jantar Mantar is during mid-day. This time the Sun is vertically above and it is easy to understand the working process of each instrument.

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