Gurudwara Bangla Sahib is not just a place of worship and spirituality but also a symbol of equality and communal harmony. The Gurudwara serves Langar, a community kitchen which provides free meals to all visitors without any discrimination. The concept of Langar was started by Guru Nanak Dev Ji, the founder of Sikhism, and it upholds the principle of eating together regardless of one's background. The food served is strictly vegetarian, in keeping with the principle of nonviolence and to ensure that dietary restrictions of different faiths are respected.
Note that while Gurudwara Bangla Sahib itself does not operate as a restaurant, the listed establishments are well-known restaurants in the vicinity of the Gurudwara, which offer delightful vegetarian dining experiences influenced by the local cuisine and culture.