Introduction: Originally named “Yantra mantra” which literally means instruments which do the calculations. Located on the Sansad Marg, in front of NDMC Building, New Delhi. Jantar mantar is a well-known place where protests and hunger strikes are held. Edifice is entirely made up of red brick, rubble and plastered with lime. Complex comprises three instruments namely
1) Samrat Yantra,
2) Jayaprakash Yantra,
3) Ram Yantra and
4) Misra Yantra.
The largest one is Samrat yantra which is a huge equinoctial dial structure. This is also known as the king of instruments, it is an equal hour sundial indicating hours, minutes, and seconds. Jai prakash yantra is a two complementary hemisphere in structure. There used to be lines drawn on the sector of the instruments which now have disappeared. This yantra was made to find out Indian Standard Time (IST) and Meridian Pass Time. Ram yantra is named after Maharaja Ram Singh who was the ancestors of Sawai Jai Singh. It is in the shape of two circular walls each of which are 24 feet in diameter. The floors and the walls are divided into 30 sectors and 30 spacings. The Misra yantra was designed to find out the shortest and longest days of the year. It consists of five further instruments. It also points out the exact moment of Moon in various cities and locations. All the instruments are repaired and restored repeatedly but accurate observations cannot be made today as the complex is surrounded by countless tall buildings. Misra yantra is the only instruments of its kind in the whole world.
History: Jantar Mantar is an observatory built by Sawai Jai Singh II constructed in 1724 AD. Jantar Mantar of Delhi was constructed on an experimental basis. It was built to track the movement of the moon, sun and planets. Calculations given by the observatory called as ‘Zij Muhammad Shahi’. Originally instruments were of brass but later replaced by a huge masonry instruments made up of brick, lime and clay. The Jantar Mantar of Delhi is only one of the five observatories built by Sawai Jai Singh II, the other four are located at Jaipur, Varanasi, Ujjain and Mathura. All of these were built between AD 1724 and AD 1730 during the period when the last great Mughal emperor Aurangzeb had died.
Open: Daily 6:00am-6:30pm
Address: Sansad Marg, Cannaught Place, Delhi-110001
Entry Fee: 15Rs per person for Indians, 200Rs per person for foreigners
Nearest metro station: Janpath
Surroundings/Markets: Janpath, Palika bazaar
Contact no.: 011-23365358