Gurdwara Shri Bangla Sahib is one of the most important historical and sacred pilgrimage destinations of the Sikh community in India and the most sacred among the destinations in Delhi. It was actually a Haveli or Bangla where Guru Hari Krishan, the eighth Sikh Guru of the Sikhs, stayed during his tour to Delhi in 1664. The Guru was entertained as a royal guest by Mirza Raja Jai Singh in this bangla. Later this bangla became the memoir of the Guru and was later converted to gurudwara. It is estimated that more than 10,000 visitors visit this Gurudwara every day.

The main structure is called 'Main Hall'. It has an open central shrine. There is a bronze cupola hanging over a smaller golden dome. Beneath this dome are the silk sheets, spread out and covered with flowers. This is where the Guru Granth Sahib, the holy book of the Sikhs, is placed. A special kind of hymn known as Gurubani is played continuously and relayed through speakers and amplifiers in the complex. The Gurudwara complex houses other buildings too. Among others, it has a school, a library and a hospital. Typical to all the Gurudwaras, this too has a pond in the courtyard for the people to take holy dips. The gurudwara is bright lit at night and looks magnificent and serene.

The birth of Guru Hari Krishan Sahib is celebrated with great pomp and show. The Sikh tradition of Sangat and Pangat are followed with great zeal. While the Sangat means religious discourses, Pangat is a community kitchen known as Guru ka Langar. It provides food to all devotees, pilgrims and visitors.