Statement (a) is correct as for the purpose of census 2011, a person aged seven and above who can both read and write with understanding in any language is treated as a literate. The literacy rate of India in 2011 is 74.04 per cent. Literacy rate among females is 65.46 per cent, whereas the literacy rate among males is 82.14 per cent. Kerala has achieved a literacy rate of 94.00 per cent. Bihar is the least literate state in India, with a literacy of 61.80 per cent. Census 2011 was the 15th census of India and 7th census after Independence. The motto of Census 2011 was ‘Our Census, Our Future’. First Census was held in 1872.The present Registrar General and Census Commissioner–C. Chandramouli.