The Purana Qila as it stands today is a citadel complex which houses many remnants and ruins of the past including sections of the fort area that have been designated for specific purposes or converted to a mausoleum to pay homage and tribute. There is a vast water body surrounding the Purana Qila which also plies ferry services for tourists. It has gates on all four sides of the fort marked by the four directions. The main gate is a massive arched gateway which still remains with successive smaller arches leading to the front. The Purana Qila also holds within its premises the Khairul Manzil, a mosque for congregational prayers and a Madarsa. Inside is also a private library that was used by the Emperor but entry to it is restricted.