Question

which is largest gurudwara in world

Answer 1

Historic gurdwaras in the state of Bihar include:

Takht Sri Patna Sahib.Harmandir Sahib—Patna.Guru ka Bagh, Patna.Gurudwara Ghai Ghat, Patna.Gurudwara Handi Sahib—Patna.Gurudwara Gobind Ghat - Patna.Gurudwara Guru Singh Sabha-Patna.Gurudwara Bal Lila Maini.

Answer 2

Hari Mandir Sahib is the largest Gurudwara...it is also named as golden temple... located in the Amritsar