The Red Fort, known locally as Lal Qila, is a historic fortress-palace situated in the Old Delhi area of Delhi, India, along the banks of the Yamuna River. Named for its massive red sandstone walls, this UNESCO World Heritage Site stands as a premier example of Mughal architecture, synthesizing Persian and local Indian design styles. Originally known as Qila-i-Mubarak, or the Blessed Fort, the complex served as the imperial center of Shahjahanabad. Today, it remains a symbol of national significance, pictured on the ₹500 currency note and serving as the site where the Prime Minister raises the national flag each Independence Day.
Emperor Shah Jahan commissioned the construction of the fort on May 12, 1639, following his decision to shift the Mughal capital from Agra to Delhi. Planned by Ustad Ahmad Lahori, the architect of the Taj Mahal, work began in May 1638 and reached completion in April 1648. Designed with asymmetrical boundary walls to encompass the existing Salimgarh Fort, the complex was originally finished in shades of red and white. Emperor Aurangzeb later expanded the private quarters by adding the Moti Masjid, or Pearl Mosque, along with protective barbicans outside the main gateways.
During the 18th and 19th centuries, the site weathered extensive upheaval and plunder. The Persian ruler Nadir Shah stripped the fort of its riches in 1739, and control subsequently shifted between Maratha, Jat, Sikh, and Afghan forces. Following the Indian Rebellion of 1857, British authorities repurposed the site as a military cantonment and demolished roughly eighty percent of its internal buildings, including harem quarters, servants' residences, and gardens. Stone barracks were constructed over the cleared land, though efforts to restore the fort's damaged walls and gardens were later launched under Lord Curzon.
Visitors enter the complex through the Lahori Gate, which leads into a covered marketplace featuring craft and jewelry shops. Several colonial-era barracks inside the grounds now house public museums focusing on the 1857 War of Independence, the Jallianwala Bagh massacre, Subhas Chandra Bose, and Indian art. Additional displays showcase military history and archaeological finds from the area. Within the imperial enclosure, visitors can view historic marble structures, the Moti Masjid, and royal bathhouses.
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