The Union Cabinet today approved a proposal to update the National Population Register (NPR), which is linked to the Census. The exercise will cost Rs 3,941 crore, the government said. The Census Commission has said the objective of the NPR is to create a comprehensive identity database contaning demographic details of every "usual resident" of the country. "There is no link between NPR and NRC (National Register of Citizens). The NPR has nothing to do with NRC," Union Minister Prakash Javadekar told reporters in New Delhi today.