Dear S. Makhan Singh jee [Website: www.sikhmarg.com]
   Waheguru jee ka Khalsa  Waheguru jee kee Fateh
Many thanks for sharing information about the source of the Sikh History printed in Hindi by SGPC. You have rightly expressed your views that Books written by English Authors can’t be taken as gospel truth as they wrote in English after hearing/learning from then available sources. For instance,              
    there are several inaccuracies reproduced by Lieutenant-Colonel Malcolm (Sketch of The Sikhs, 1812/2007); J.D. Cunningham (History of the Sikhs,1849 / 1990); Max Arthur Macauliffe (The Sikh Religion, 1909 / 1985)
As explained by you, pages 53 and 54 of History of the Sikhs by J.D. Cunningham are very relevant. Som Extracts.....Har Gobind died in peace in 1645, at Kiratpur on the Sutlej, a place bestowed upon him by the hill chief of Kahlur, and the veneration of his followers took the terrible form of self-sacrifice. A Rajput convert threw himself amid the flames of the funeral pyre, and walked several paces till he died at the feet of his master.
A jat disciple did the same, and others, wrought upon by these examples, were ready to follow, when Har Rai, the succeeding Guru, interfered and forbade them.
.....During the ministry of Har Gobind, the Sikhs increased greatly in numbers, and the fiscal policy of Arjun, and the armed system of his son, had already formed them into a kind of separate state within the empire....  (based on Dabistan, 280, 281, and Dates of Demise are also different)
..But such reflections did not occupy his mind or engage his heart, and the rebuke of a Brahman that if the world was the same as God, he, the Guru, was one with the ass grazing hard by, provoked a laugh only from the tolerant Har Gobind (Dabistan, 277, 279, 280)..
 Thus, it is not clear why then History of the Sikhs by J.D. Cunningham was not banned by the SGPC ?
Gurmit Singh (Australia)