Which city does not have Jantar Mantar observatories built by Jai Singh II in the early 18th century?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Agra
Maharaja Sawai Jai Singh II of Amber, the founder of Jaipur, built five astronomical observatories called Jantar Mantar in the early 18th century: at Delhi, Jaipur, Ujjain, Varanasi and Mathura. Their large masonry instruments measured time and tracked the Sun, Moon and stars. Agra is not one of these places.