Q. Which of the following Sikh Guru is know to have completed the Harmandir Sahib? Answer: Guru Arjun Dev
Notes: The Darbar Sahib or Harmandir Sahib, meaning "abode of God", also known as Golden Temple, is a Gurdwara located in the city of Amritsar, Punjab, India. It is the preeminent spiritual site of Sikhism. It was built by Guru Arjun Dev.