28.626377.2165Delhi, Delhi

HERITAGE SITE

Ram Yantra - The Cylindrical Instrument at Jantar Mantar, Delhi

A pair of large cylindrical astronomical instruments at Delhi's Jantar Mantar, used for measuring the altitude and azimuth of celestial bodies.

Delhi, Delhi1-2 hours9:00 AM – 5:30 PM₹25No Photography

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Best Season:The best time to visit is from October to March when the weather in Delhi is cool and pleasant, with average temperatures between 10°C and 25°C. This period offers clear skies, which is ideal for understanding the sun's role in the observatory's function. Avoid the peak summer months of May and June due to extreme heat (often above 40°C). The monsoon season from July to September can bring heavy rain and high humidity, making an outdoor visit uncomfortable.

Duration:1-2 hours

Entry (Indian):₹25

Entry (Foreign):₹300

Photography:Not Allowed

Parking:Not Available

Why Visit Ram Yantra?

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The Ram Yantra is a key instrument within Delhi's Jantar Mantar observatory complex. It consists of two large, complementary cylindrical structures, both open to the sky. Each structure has a central pillar, or gnomon, of the same height as its walls. The floor and the inside of the walls are marked with calibrated scales. Visitors can walk inside these structures and observe the intricate design firsthand. The purpose of the Ram Yantra was to measure the altitude (the angle above the horizon) and the azimuth (the horizontal angle from a cardinal direction) of celestial objects like the sun, moon, and stars.

Best Time to Visit

Plan your trip around the ideal season for the best experience

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BestGoodModerateOff Season

Peak Season

November to January, especially on weekends and public holidays, due to pleasant weather and peak tourist season.

Moderate

February, March, October, and on weekdays.

Low Season

April to June due to extreme summer heat, and July to September during the monsoon season.

Entry Fees & Timings

Plan ahead with accurate pricing and visiting hours

Indian Visitors

₹25

Per person

Foreign Visitors

₹300

Per person

Opening Hours

9:00 AM — 5:30 PM

Open all days of the week. Last entry is usually 30 minutes before closing time. Timings might vary slightly based on the season (sunrise to sunset), so it's good to check locally.

Entry fee is for the entire Jantar Mantar complex. For Indian, SAARC and BIMSTEC citizens: ₹25. For foreign nationals: ₹300. Free entry for children up to 15 years. Videography fee is ₹25 extra. Tickets can be purchased at the counter or online.

Location & Directions

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Address

Sansad Marg, Connaught Place, New Delhi, Delhi 110001

Coordinates

28.6263, 77.2165

Nearest City

Delhi

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How to Reach

Multiple ways to get to this destination conveniently

By Air

Indira Gandhi International Airport (DEL) is the nearest airport, located about 15 km away. It takes approximately 30-45 minutes to reach by taxi or airport met...

By Train

New Delhi Railway Station (NDLS) is the closest major station, just 2 km away. Old Delhi Railway Station (DLI) is about 5 km away. Both are well-connected to au...

By Road

Jantar Mantar is located on Sansad Marg in Central Delhi and is easily accessible by road from all parts of the city and surrounding NCR region via the Outer an...

Local Transport

The best way to reach is via the Delhi Metro; get down at Patel Chowk or Janpath station. DTC buses, auto-rickshaws, and app-based ride-hailing services like Ol...

History & Significance

Learn about the story and cultural importance of this destination

History

The Ram Yantra was constructed around 1724 by Maharaja Sawai Jai Singh II of Jaipur as a central component of his observatory in Delhi, now known as Jantar Mantar. It was one of five such observatories he built across northern India. The primary purpose was to compile accurate astronomical tables (k...

Significance

The Ram Yantra's significance lies in its unique and ingenious design as a scientific instrument. It is a remarkable example of the advanced astronomical and mathematical knowledge prevalent in 18th-century India, showcasing a period of scientific inquiry. Architecturally, it is a fusion of form and...

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