Which Rajput ruler built the Jantar Mantar, the stone astronomical observatory at Jaipur?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Sawai Jai Singh II
The Jantar Mantar observatories, the largest of them at Jaipur, were built in the early eighteenth century by Maharaja Sawai Jai Singh II of Amber, the founder of Jaipur.