Central Coalfields Ltd (CCL) based in Ranchi is witnessing significant turnaround in its production which has grown from 10 per cent last year to over 55 mt. It has grown to nearly 16 per cent in the first five months of the current fiscal. The reason for the increase in production is attributed to the opening up of two large open cast mines — Amrapali with 12 mt approved capacity and Magadh with an approved capacity of 9 mt per annum.