"And Im not so knowledged in the details of Sikhism (or Islam), but if Im not mistaken, wasn`t one of the motivations of Sikhism to unite the Hindu/Islam community?  Sikhism does draw on basic edicts of Hinduism and Islam."

To say this in the kindest possible way, that`s way off. However, the motivation of Sikhi to unify the Hindu/Islam community is rather a consequence of the core beliefs and values that Sikhi encompasses, e.g. equality amongst all men/women - REGARDLESS. Theres plenty of information on all religons on the web that provide good summaries, just make sure its a reliable source, perhaps www.sikh.net ? And yes, Guru Granth Sahib contains contributions from non-Sikhs, make of that what you will, I think it only emphasises equality.

P.S. Dammit Shradha, I was hoping you`d get angry. You don`t have to be sorry, I was just hungry. I won`t nibble ur cheeks tonight cause this is what I had for dinner: potato, vegetables, roast lamb, aloo poori, aloo palak, and some pumpkin sabji.