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A pair of large cylindrical astronomical instruments at Delhi's Jantar Mantar, used for measuring the altitude and azimuth of celestial bodies.
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.
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Sansad Marg, Connaught Place, New Delhi, Delhi 110001, Connaught Place, Delhi, Delhi, India
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 metro express.
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 auto-rickshaws and cabs.
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 and Inner Ring Roads.
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 Ola and Uber provide excellent connectivity.
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