Jantar Mantar

The Jantar Mantar is an observatory which was built by Maharaja Jai Singh II of Jaipur. He was interest in astronomy and the sciences, and the concrete Jantar Mantar stands as a testament to his dedication and his enthusiasm for this science. This is one of the principle tourist spots in the city of Delhi, and it is visited by many tourists and locals every day. What may appear as a bunch of geometrical shapes to people, are actually instruments which were used for the revision of the calendar. It is a treat for those who love science, and also for those who love heritage sites and history.

It is bult entirely of red brick and rubble, and is inscribed with scale markings in order o ake readings. The obeservatory comprises six instruments, of which the largest is the Smart Yantra a sundial.

Delhi is a cosmopolitan city with many ethnic groups and cultures. Due to these various groups, several languages are spoken here, Hindi is the official language, which is spoken by the majority of the population. Urdu, Punjabi and English are other common languages in Delhi.


Travel Tips

The Jantar Mantar complex is open all days from sunrise, up until sunset. The entry fee here is nominal. For Indians, it is five rupees only, while for foreigners, it is a hundred rupees.

When to visit

  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • July
  • Aug
  • Sept
  • Oct
  • Nov
  • Dec
sprinkles Cold
  • 20.4° Max
  • 7.5° Min
  • 19.7 mm
  • Carry Heavy woollen
Things to do

The Jantar Mantar was built by the king in order to better calculate the position of the stars, and revise the calendar to make it more precise. This observatory was inaugurated by him in 1724, and there were 13 instruments for astronomy, which also fall under the category of architecture.

Each of these instruments helps understand the movements of the sun, the moon and the other planets. They help correct the astronomical tables and they help track time more precisely. Four major instruments are recognized at Jantar Mantar. The Samrat Yantra literally means the supreme instrument. It is a giant, concrete triangle, but it functions as an equal hour sundial. This instrument is 114 feet long, and the hypotenuse of this triangle is 128 feet long. The Hypotenuse falls parallel to the axis of the earth, and its tip points towards the North Pole. On either sides of this giant triangle shape are quadrants. These quadrants have graduations which mark the units of time, namely, the hours, minutes and seconds. Maharaja Jai Singh II took the idea of a basic sundial, and conceived this set up to use the same formula for more precise measurements.

The Jayaprakash Yantra consists of hemispheres which have been hollowed out, and which have markings on its concave insides. These markings, along with the strings which have been crisscrossed across the rim of these hemispheres help figure out the exact position of the stars, in relation to the position of the other bodies in the galaxy. This is an ingenious tool which helped greatly with astronomical observations. The Misra Yantra was the tool used to calculate the longest and the shortest days of the year. This tool was also useful in figuring out the exact moment in noon in various cities all over the country. The latter is the only instrument which had not been invented by Maharaja Jai Singh II.

Together, all the instruments come together to symbolize how advanced the country was in terms of invention, discovery and the sciences.

Getting Around

The New Delhi metro system is the newest form of public transportation in the city. It has been touted as Asia’s best rapid transit system.  It is fast, efficient, fairly priced and environmentally friendly. A route map is available and also posted at the stations. It is one of the most user-friendly systems in the world.

New Delhi is a large city and there are many options for getting around. The choices can be broken down into public and private transportation. The main options for public transportation include the new metro system, buses, and taxis. Rickshaws are interesting alternatives to these. 

A very comfortable way to get around New Delhi is by taxi. There are thousands of cabs operating in the city and are not hard to find. Rides can be pre-arranged or found on the city streets.  Fares are determined by either meters or negotiation. If the meter is not an option, make sure to agree on a price before beginning a trip.

Places to Stay

If you’re in the mood to splurge, then the Radisson Blu Hotel is one of the perfect options to go for. The decor is a mix of the medieval with the modern, and the rooms are comfortable and spacious. This 5-star hotel provides all the amenities you might need, and the restaurants within this hotel provide some of the most delicious cuisines. 

If you’re looking for comfortable places to put up at, which will not burn a hole in your pocket, then Avalon Courtyard and Peppermint West might be two good choices. Both these hotels provide all the basic amenities, internet services, and much more. The rooms are clean, comfortable, and the hotels have a very nice ambience to go with their fantastic provisions.

If you're for a good budget hotel, with clean rooms, and a number of options available, in terms of the kind of room required. Another low range hotel is Hotel Star Paradise. They provide room service, they have a rooftop restaurant, and free Wi-Fi services too.

How to Reach

  • The Jantar Mantar is located in delhi, and the airport as well as railway station in the city are fairly accessible.
  • One can get to Jantar Mantar by Metro by getting off at Patel Chowk, which is very close to Connaught Place.
  • You can also avail an auto rickshaw, a bus or a hired car to get to this site.

Surrounding Attractions

The India Gate, Agrasen Ki Baoli, Connaught Place, and Janpath are some of the places which are closest to this site.

Emergency No.

1091: Women’s helpline

100: Police control room.

101: Fire control room.

102: Ambulance Helpline.

1099: Centralised Accident and Trauma Services.