State-run Coal India Ltd (CIL) has posted a one per cent growth in production to 435.84 million tonnes (mt) during the financial year 2011-12, as against 431.32 during the previous fiscal. It also comes out with a target for 464.1 mt in 2012-13. In absolute terms, the firm’s production saw a rise of 4.52 mt over the corresponding period last year.