How there wl b only two LP and one guard reqd? There wl be three sets of loco pilot and three guards I.e. In total 9 people wl b reqd... Plus the cost of electric loco maintenance, extra surchrage for the cost of railways workers like controlleres, gangmen, stationery that is being used, cost of maintenance of servers, maintenance of ohe and railway tracks, cost of linen u gt in ac comparmnets... N many more running cost surcharge is added... Its nt so easy to calculate the revenue n cost...