The 15th National Census exercise, since 1872, will see over 25 lakh officials capturing the socio-economic-cultural profile of its citizens. It will cost around Rs. 2,209 crore while the expenditure on NPR will be Rs. 3,539.24 crore. The exercise will also consume more than 11 million tonnes of paper.
source <http://www.hindu.com/2010/04/02/stories/2010040250640100.htm>