Might the caste mark show through?
"The fact that the Muslim population has a crime rate six times that of the Hindu and three times that of the Sikh suggests that it could, for the Muslim culture of the subcontinent has in general much greater difficulty compromising creatively with Western culture than the other two religions have. This startling difference is a further argument against those who would see in the development of an Indian underclass an inevitable response to racial prejudice: for it is surely unlikely that the racially prejudiced would trouble themselves to distinguish between Muslims, Sikhs, and Hindus. "