ḌHILLĪ MAṆḌAL, BHĀĪ, was a devoted Sikh of the time of Gurū Arjan. Once, as says Bhāī Manī Siṅgh, Sikhāṅ dī Bhagat Mālā, he reported to the Gurū that he had come across verses using the pseudonym Nānak, but which did not seem genuine at all. Gurū Arjan, continues Bhāī Manī Siṅgh, undertook thereupon the task of preparing an authorized volume sifting the genuine from the counterfeit. Thus emerged the Holy Granth which was installed in the Harimandar at Amritsar in 1604.
See GOPI MAHITA, BHĀĪ