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BIR, a term used for a recension or copy of the Guru Granth Sahib, is derived from Skt. verb vid meaning "to make strong or firm, strengthen, fasten, or to be strong, firm or hard." The Punjabi verb birana which means "to fix, bind or fasten (something) firmly, or to lay (a gun)" is from the same root. Guru Arjan having compiled the Holy Book deputed one of his leading disciples, Bhai Banno, to go and get the volume bound in Lahore, perhaps because facilities for proper binding did not then exist at Amritsar.
