The Guru Granth Sahib is installed in the temple every morning and returned at night to the Akal Takhat, the temporal seat of the Khalsa brotherhood. The ceremony takes place at 5am and 9.30pm in winter, and 4am and 10.30pm in summer. Inside the Akal Takhat you can view a collection of sacred Sikh weapons. The building was heavily damaged when it was stormed by the Indian army during Operation Blue Star in 1984. Sikhs rebuilt the tower from scratch.