A Baoli was an open tank where drinking water was stored, and was also a place where people congregated to socialise in earlier times. The Agrasen ki Baoli is located off the Hailey Road in Connaught Place in the centre of New Delhi, and is virtually unknown to even the locals.
It was apparently built by Maharaja Agrasen.
And it is home to Bats. What is even lesser known is that it is home to thousands of bats, who live in its cool, dark well area.