Back to original discussion:
1) Guru Arjan Dev was martyred by Jahangir
2) Guru Tegh Badhur was martyred by Aurangzeb
3) The Mughals went to the Punjab to supress the Sikhs
4) The Mughals killed the two younger sons of the Guru Gobind Singh
These are acts of force. Do you dispute any of them occurred? Note that I can provide sources for all of these, and if you cannot provide contemporary counter-sources, then you are not entitled to say they do not count as proof. For example, in the case of the train-burning incident, you provided a counter-source (301) to demonstrate that the original claim was contested. If you wish to contest these claims, you must also provide counter-sources.
"In Goindwal, which is on the river Biyãh (Beas), there was a Hindu named Arjan, in the garments of sainthood and sanctity, so much so that he had captured many of the simple-hearted of the Hindus, and even of the ignorant and foolish followers of Islam, by his ways and manners, and they had loudly sounded the drum of his holiness. They called him Guru, and from all sides stupid people crowded to worship and manifest complete faith in him. For three or four generations (of spiritual successors) they had kept this shop warm. Many times it occurred to me to put a stop to this vain affair or to bring him into the assembly of the people of Islam. At last when Khusrau passed along this road this insignificant fellow proposed to wait upon him. Khusrau happened to halt at the place where he was, and he came out and did homage to him. He behaved to Khusrau in certain special ways, and made on his forehead a finger-mark in saffron, which the Indians (Hinduwän) call qashqa, (Tilak) and is considered propitious. When this came to my ears and I clearly understood his folly, I ordered them to produce him and handed over his houses, dwelling-places, and children to Murtaza Khan, and having confiscated his property commanded that he should be put to death" - Tuzk-e-Janghiri
This is from Jahangir's memoirs. This was written in his time. He did not contest it, nor are there any records of him attempting to supress it or punish anyone for possession or distribution for it. There are no counter-sources, to the best of my knowledge (unless you go and find one). Unless you can find a scholarly article that disputes the validity, or a source from the period that makes a claim to the contrary, this constitutes proof.
301 ouncer and Fatihah, please realize that in doing this I am not attempting to shame the entirety of Islam, or trying to paint all Muslims as evil, or even paint the entire Mughal Empire as evil. I realize there were a number of great technological and architectural and cultural progressions under the Empire; but your denial of any atrocity is a slap in the face to the memory of my ancestors, and I will not let that pass. There are Muslims, or those who claim to be Muslims, capable of great evil, such as 9/11. They exist. Your religion is not evil through-and-through, but there are elements within in and there were elements within it that were. To deny they ever existed is to deny honour and respect to the memories of those killed by them. It is equal to Holocaust denial, or perhaps fifty years from now, '9/11 denial'. It happened. Accept it. Move on. I'm not looking for an apology for the crimes, for you have nothing to apologize for; but continued denial is both immoral and disrespectful.