Panic over the National Register of Citizens (NRC) seems to be spreading across West Bengal, with three or four recent suicides in the state's northern region being attributed to this factor by victims' families. The panic has now reached Kolkata. The birth and death certificate issuing office at the city's Municipal Corporation is full of anxious people trying to procure new documents or get errors in old ones corrected as Mamata Banerjee and the BJP cross swords over the NRC in West Bengal.