Off topic alert:
my mother still keeps in contact with one of her Hindu friends. In fact, on Eid, a couple of our Hindu friends love to eat our korbanir goshto
many Muslims attend durga puja of their Hindu friends in Bangladesh. This is how Hindus and Muslims have always lived together, and that's how it always should be. Now mind you, when we do go to Durga puja, we just observe and we refrain from food that has been offered to their Gods, and that is perfectly fine and acceptable by all
Over the years, many Hindus integrate and gradually accept Islam out of their own choice(we know a family), but there are still many that remained firm on their roots and that should be acceptable by society as it is their choice.