Takht Sri Harmandir Sahib Ji Patna Sahib is the birthplace of 10th sikh Guru Gobind Singh Ji Maharaj. the Gurdwara is situated at North East part of Patna, near the holy river Ganga. Delhi thousands of people visit this holy place .
Patna Sahib is regarded as epicenter of Sikhism spreaded in East India. Patna Sahib is the 2nd and acknowledged takht of Sikhism which is the seat of power.
Daily thousands of people visit this place and pray to God . Everyday in All gurdwaras Around The World including Patna Sahib, Langer means free food is served to all people who came there .
no matters which religion you follow everyone is equal in gurdwaras
In the end I would like to conclude by saying that you should visit this Gurdwara once in a life because you will get to know about lot of Indian history and Sikh history too