Original sentence: A section of the Namdhari Sikhs dispute this version, and instead believe that the Guru did not die at Nanded: he secretly exited from the funeral pyre (which he had forbidden others from seeing).The Guru reportedly passed away, along with his horse Dilbagh (aka Neela Ghora) on 7 October 1708 at Nanded, before which he had declared the Guru Granth Sahib as his successor
Edited sentence: A section of the Namdhari Sikhs believe that the Guru did not die at Nanded: he secretly exited from the funeral pyre (which he had forbidden others from seeing).Although the latter is disputed among other Sikhs who believe the Guru only declared Guru Granth Sahib ji  as the final Successor.The Guru is believed to have passed away, (not 'died' - seen as disrespectful too many Sikhs) along with his horse Dilbagh (aka Neela Ghora) on 7 October 1708 at Nanded