How did muslim religion spread in India & its part that is now Pakistan.Parsis from Persian Iran r still settled in India, Christian Syria, Egypt,Africa. Check history of any region honestly. Not only their religion but also the local culture was destroyed. How did Buddha statues come in Afghanistan that were recently destroyed by Taliban. Clerics & people in Christian Syria were murdered, tortured and raped kept as harams & they later converted to muslim religion as they could not escape & there was no option left.The children frm these became muslims. It is the same story everywhere. It is better we not discuss these Mr. Sayyad. You will not like it and also the debate would not remain civilised. Suffice to say, Muslim religion was spread with Quran in one hand and Sword in the other. And all this started at the time of Mohammad himself. Check all his battles and details of the war booty. I prefer not to point further to these for obvious reasons which as a muslim you must be aware of.
