This came hours after the Union Cabinet on Wednesday approved the Citizenship (Amendment) Bill that seeks to grant citizenship to non-Muslim refugees from Pakistan, Bangladesh and Afghanistan.
Inmates are made to undergo months or years of indoctrination and interrogation aimed at transforming them into secular and loyal supporters of the Communist party, which is a far-reaching step since Mao Zedong's cultural revolution of 1966.
The NPR is going to be the basis for the launch of NRC nationwide.
In many cases, such people come from the poorer sections and are often not in a position to bear the costs of the tribunals trial.
