Gurdwara eat free vegetarian food brought in by Sikhs worshiping at the "gurdwara". They may also have a library, nursery, classroom, meeting rooms, 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 most well-known "gurdwara" is the Harmandir Sahib (popularly known as The Golden Temple) in Amritsar, Punjab, India, which is the center of power (Akal Takht) of Sikhism. The first "gurdwara" was built in Kartarpur, on the banks of Ravi River in the Punjab region by the first Sikh guru, Guru Nanak
Akal Takht Harmandir Sahib was founded by sixth Sikh Guru, Guru Hargobind, as a symbol of political sovereignty and where spiritual and temporal concerns of the Sikh people could be addressed. Along with Baba Buddha and Bhai Gurdas, the sixth Sikh Guru built a 9 foot high concrete slab. When Guru Hargobind revealed the platform on 15 June 1606, he put on two swords: one indicated his spiritual authority ("piri") and the other, his temporal authority ("miri"). In the 18th century, Ahmed Shah Abdali and Massa Rangar led a series of attacks on the Akal Takht and Harmandir Sahib. Hari Singh Nalwa,