Adi Granth, also called Granth or Granth Sahib, the sacred scripture of Sikhism, a religion of India. It is a collection of nearly 6,000 hymns of the Sikh Gurus and various early and medieval saints of different religions and castes. The Adi Granth is the central object of worship in all gurdwaras (Sikh temples) and is accorded the reverence paid a living Guru. It is ritually opened in the morning and wrapped up and put away for the night. On special occasions, continuous readings of it are held, which last from 2 to 15 days. On the birthdays of the Gurus or anniversaries commemorating Sikh martyrs, the Granth is sometimes taken out in procession.