Hiring of HEMM for removal of OB and extraction and transportation of Coal with fire fighting from IX/X, VIIIA, VIII, V/VI/VII, VII, V/VI, IV(Top) & IV(Bot) seams of Patch-B of NT-ST OCP of Lodna Area for a period of 108 months with financial involvement of Rs. 679,05,80,000/- (Rupees Six hundred seventy nine crore five lakh eighty thousand only)