Salimgarh Fort, which is now part of Red fort complex, was constructed on an island of the Yamuna River in 1546. But a gate called the Bahadur Shahi Gate for entry into the Fort from the northern side was constructed only in 1854–55 AD by Bahadur Shah Zafar, the last Mogul ruler of India.
The gate was built in brick masonry with moderate use of red sandstone. The fort was used during the Uprising in 1857 and also as prison, which housed Zebunnisa, daughter of Aurangzeb; the British imprisoned the freedom fighters of Indian National Army. The layout of the Red Fort was organized to retain and integrate this site with the Salimgarh Fort through the Bahadur Shahi Gate.