The National Register of  Citizens, or NRC, makes it extremely tough to prove citizenship – often disregarding documents generally considered valid for it. Those excluded from the NRC are to be lodged in detention centres, reminiscent of concentration camps.

With the Assam Assembly elections scheduled for mid-April, the NRC is again being used to polarise the electorate. Anas Tanwir Siddiqi, a lawyer who's at the forefront of the battle against the NRC, speaks to All Indians Matter.