Why Orissa cristians suffer persecutions?

its not about christianity, there were christians in orissa for long time, but this time they relocated to hindu dominated place and made them minority and started to seize their lands and business. Its fight for identity. India does not hate any religious preacher, even though they are rudest on this earth. Even though they preach to hate hindus, something like John Mccain propagating hate against Obama.