A gurdwara (sometimes written as gurudwara) (Gurmukhi: ਗੁਰਦੁਆਰਾ guradu'ārā, meaning "Door to the Guru") is a place of assembly and worship for Sikhs. Sikhs also refer to gurdwaras as Gurdwara Sahib. People from all faiths are welcomed in gurdwaras. Each gurdwara has a Darbar Sahib where the Guru Granth Sahib is placed on a takhat (an elevated throne) in a prominent central position. Any congregant (sometimes with specialized training, in which case they can be known by the term granthi) may recite, sing, and explain the verses from the Guru Granth Sahib, in the presence of the rest of the congregation.
All gurdwaras have a langar hall, where people can eat free lacto-vegetarian food served by volunteers at the gurdwara. They may also have a medical facility room, library, nursery, classroom, meeting rooms, playground, sports ground, a gift shop, and finally a repair shop. A gurdwara can be identified from a distance by tall flagpoles bearing the Nishan Sahib, the Sikh flag.
The best-known gurdwaras are in the Darbar Sahib complex in Amritsar, Punjab, including Darbar Sahib, the spiritual center of the Sikhs and Akal Takht, the political center of the Sikhs.
Sikhs believe that Guru Nanak was ordained directly by God to construct dharamsals (places of worship; meaning ‘abode of righteousness’), as per the B.40 Janamsakhi:
Go, Nanak [answered God]. Your Panth will flourish. The salutation of your followers shall be: 'In the name of the true Guru I fall at your feet'. The salutation of the Vaisnava Panth is: 'In the name of Rama and Krisna'. The salutation of the Sanyasi Panth is: 'In the name of Narayan I bow before you'. The Yogi's salutation is: 'Hail to the primal One'. The Muslims' cry is: 'In the name of the One God peace be with you'. You are Nanak and your Panth will flourish. Your followers shall be called Nanak-panthis and their salutation will be: 'In the name of the true Guru I fall at your feet'. I shall bless your Panth. Inculcate devotion towards Me and strengthen men's obedience to their dharma.