The Jantar Mantar is one of the earliest astronomical observatories in India, located in the heart of New Delhi. It was constructed in 1724 by the Rajput ruler Maharaja Sawai Jai Singh II, who had a deep interest in astronomy and scientific observation. Built using stone and masonry, the observatory features a series of large-scale instruments designed to measure time, predict eclipses, and track the movement of celestial bodies with remarkable accuracy for its time.

Although smaller than its counterpart in Jaipur, the Delhi Jantar Mantar remains historically significant as part of a network of observatories established by Jai Singh II across northern India. Today, it is preserved as a protected monument, offering insight into the scientific advancements of 18th-century India. Its geometric structures, including sundials and angular instruments, reflect a sophisticated blend of astronomy, mathematics, and architectural design, making it an intriguing site for visitors interested in India’s scientific

Timing: Sunrise to Sunset

Open : All Days

Entrance Fee: (updated April’ 2026)

• INR 300 Per Person (Foreign Tourist)
• INR 25 Per Person (Citizen of SAARC Countries)
• INR 25 Per Person (Indian National)
• Entry Free for children below 15 years of age (any nationality)