Explanation:

 Guru Granth Sahib is the religious scripture of Sikhism, regarded by Sikhs as the final, sovereign, and eternal living guru following the lineage of the ten human Sikh gurus of the Sikh religion.Adi Granth, the first rendition, was compiled by the fifth Sikh guru, Guru Arjan. The tenth guru, Guru Gobind Singh, added one salok, dohra mahala 9 ang, 1429 and all 115 hymns of his father, Guru Tegh Bahadur. This second rendition came to be known as Sri Guru Granth Sahib.After Guru Gobind Singh's death in 1708, Baba Deep Singh and Bhai Mani Singh prepared many copies of the Sri Guru Granth Sahib Ji for distribution.
In 1708 Guru Gobind Singh conferred the title of "Guru of the Sikhs" upon the Adi Granth.Thus, Sikhs since then have accepted Guru Granth Sahib, the sacred scripture, as their eternal-living guru, as embodiment of the ten Sikh gurus.