Re: Muslim- Sikh Rivalry
It was more due to confusion and careful planning of opposite camp. Khasrau went to Guru Arjan and asked for his blessing, after the death of Akbar, Sheikh Ahmed Sirhindi convinced emperor that Guru is allied with Khasrau against Jahangir, there was another Hindu whose daughter’s matrimonial alliance to guru’s son hargobind was rejected by Guru. Jahangir ordered his capture along with Prince Khasrau, Khasrau was blinded and Guru Arjan was tortured, Jahangir mention Guru as some Hindu Sadhu, Seeing his torture, Sufi Pir Mian Mir was so much enraged that he was to destroy entire lahore when guru asked him not to do so, as all was what god willed it to be.
All above fact can be disputed as I have heard this story from one sided sikh folklore, hence neutrality of it can be disputed. Sikh-Muslim relation always remain good, later struggle was between Sikhs and Mughals.