Almost obscured by thick vegetation, the ancient temple of Bhairon Nath, which adjoins the eastern wall of Purana Qila, is one of the smallest but most historic shrines in Delhi.
According to tradition, it was erected shortly before the epic battle between the Pandavas and Kauravas. It was built to house the image of Bhairon, one of the many manifestations of Lord Shiva to whom the Pandavas pray one the eve of battle.