FATEHNAMAH, or Namah-i-Guru Gobind Singh, a letter (namah in Persian) that Guru Gobind Singh (1666-1708) is believed to have addressed to Emperor Aurangzib prior to his better known Zafarnamah included in the Dasam Granth. The first reference to the existence of Fatehndmah dates to 1922 when Babu Jagan Nath Das published in the Nagari Pracharini Patrika, Savan 1979 / July-August 1922, a letter supposed to have been sent by Chhatrapati Shivaji to Mirza Raja Jai Singh. In his introduction, Babu Jagan Nath Das had mentioned that he had copied around 1890 two letters from manuscripts in the possession of Baba Sumer Singh, mahant of Takht Sri Harimandar Sahib at Patna from 1882 to 1902 one, Shivaji`s which he was publishing in the Patrika and the other. Guru Gobind Singh`s which, he added, he had lost and of which he could not procure another copy owing to the death of the owner of the original document.
GURU GIRARATH KOS is a dictionary of the Guru Granth Sahib compiled by the Nirmala scholar Pandit Tara Singh Narotam. The kos, completed in AD 1889, is in two volumes printed at Rajendra Press, Patiala the first (pp. 702) in 1895 and the second (pp. 706) in 1898. The first volume has a lengthy Introduction which carried no title except the abbreviated form of the mul mantra, i.e. Ik Oankar Satguru Prasad, at the head. The Introduction beginning with a definition of the word kos contains detailed information about the contents of the book, the method of arrangement of words and phrases, abbreviations used, a list of the Sanskrit prefixes, some specimens of the words which have different meanings in Sanskrit and Persian, and a few examples of the words which take different forms in different languages of India.