Naubat Khana at Red fort (Delhi) was:

Answer: [B] an orchestra house used for playing music five times a day at propitious hours.

Naubat Khana was an orchestra house used for playing music five times a day at propitious hours.It was built by Akbar at Fatehpur Sikri and Shahjahan at Red fort in Delhi.

This question is a part of GKToday's Integrated IAS General Studies Module