Economy NRC and detention centres: What you need to know about PM’s claims Updated : December 23, 2019 05:49 PM IST The current citizenship rules give vast discretionary rules to the local registrar of citizens, allowing them to arbitrarily determine whose citizenship might be in doubt. There are six centres in Assam, and similar facilities are being built in West Bengal, Maharashtra, Karnataka and Telengana. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.