What was the purpose of the Jantar Mantar observatories, built by Jai Singh II?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Astronomy
Sawai Jai Singh II of Amber, the founder of Jaipur, built five Jantar Mantar observatories in the early 18th century, at Delhi, Jaipur, Ujjain, Varanasi and Mathura. Their large masonry instruments were used for astronomy: telling the local time, following the sun, the moon and the planets, and preparing calendars. The Jaipur Jantar Mantar is a UNESCO World Heritage Site.