Excellent post with amazing photos @Manishhh 
I also heard a lot about the Jinns in this fort 
Also another bit about this fort - a lot of its stones and bricks were stolen by the Mughals to build the Red Fort which is nearby. As a result, the Feroz Shah Kotla fort appears in ruins.
Here’s a report of my visit there 4 years ago:
Forts of Delhi - Feroz Shah Kotla Fort
It is no surprise we have taken almost similar photos 
