You're talking about NRC accord which was signed by Rajiv Gandhi in Assam. For HN readers, Assam is a North-Eastern Indian state which has suffered from decades of illegal immigration from Bangladesh. The issue was back at forefront when the Supreme Court directed the Government to update NRC in 2013[1].

Contrary to what the parent claims, it's unlikely that people who loose citizenship will be kicked out of the country as India doesn't have any agreement with neighbors in this regard.

1 https://en.m.wikipedia.org/wiki/National_Register_of_Citizen...