Soniya and Rahul are as much Indian like any other citizen in this country. Is it possible for Soniya or Rahul to become Hindu or Karunanithi to become Tamilian? Even though Soniya and Rahul act like Hindu, they are out siders of Hindu fold and Hindu varna system. Even though  Karunanithi act like Tamilian, he cannot become Tamilian. Indian identity is not based on mother land or mother tongue or mother religion. It is purely a political identity based on legal rational system. But there are some Hindu fundamentalist try to impose their traditional bias on it, which is beyond their control.