The volume contains several critical comments about the different manuscripts of Sri Guru Granth Sahib by an Udasin saint. These manuscripts were copied or written at different places and different periods of time. This Udasin scholar, who has gone through several versions, has raised doubts about the authenticity of the original Kartarpuri Bir and Bhai Bannowali Bir and concluded that Kartarpuri Bir has been compiled by Bhai Gurdas instead of Guru Arjan Dev. The fifth Guru's signatures on it have also been forged by its caretakers and pasted on the copy. Similarly he has interpreted some hymns in S.G.G.S. (one by Satta Balwand) as using derogatory language against the two sons of Guru Nanak. He has also challenged the chronology of names in S.G.G.S. He believes that the verses of several Bhaktas (Saints) should have come before the Guru, since most of the Bhaktas lived prior to Sikh Guru's times. He also gives greater weightage to "Dasam Granth" than S.G.G.S. as the Sikhs and SGPC had forcibly turned out the Udassi custodians of Sikh Gurdwaras. However, his comments, though somewhat biased and prejudiced, need to be critically analyzed by Sikh scholars. His research and scholarship is undoubtedly monumental. His comments need a point by point explanation and rebuttal wherever required.