Gurudwara Bangla Sahib is one of the most revered Sikh shrines and is closely associated with the Eighth Sikh Guru, Guru Har Krishan Ji. It is especially known for its sacred Sarovar within the complex, which holds deep spiritual importance for devotees. The Gurudwara was established in 1783 by the Sikh general Sardar Baghel Singh, who also supervised the construction of nine Sikh shrines in Delhi during the Mughal period, standing in opposition to Emperor Shah Alam II.

The site was originally a bungalow belonging to the 17th-century ruler Raja Jai Singh and was known as the Jai Singhpura Palace. In 1664, Guru Har Krishan Ji stayed here during his visit to Delhi, a time when the city was suffering from severe outbreaks of smallpox and cholera. Guru Ji devoted himself to serving the sick by nursing them and providing clean drinking water. While performing this selfless service, he himself fell ill and attained eternal rest on March 30, 1664. To honor his memory, Raja Jai Singh later had a small water tank constructed at this place, which eventually developed into the Sarovar that exists today.

Today, the Gurudwara and its Sarovar are held in great reverence by the Sikh community, and special congregations are organized here every year on the birth anniversary of Guru Har Krishan Ji. The complex also includes a community kitchen, a large pond, a school and an art gallery, reflecting Sikh values of service, learning and equality. Like all Sikh Gurudwaras, Langar is served daily, where people of all faiths sit together and share a meal prepared by Gursikhs and volunteers.

Visitors are required to cover their heads and remove their shoes before entering the Gurudwara as a sign of respect. Free guides are available to assist pilgrims and international visitors, and headscarves are provided at the entrance for those who need them. Volunteers serve continuously, maintaining cleanliness and helping visitors at all times. Located on Baba Kharak Singh Marg near Connaught Place in New Delhi, Gurudwara Bangla Sahib is easily recognized by its magnificent golden dome and the tall Nishan Sahib. Situated close to the Sacred Heart Cathedral, it stands as a powerful symbol of compassion, service and spiritual devotion.