hiring of pay loaders for mechanical transfer of coal into wagons at katora siding of katkona sub area as per nit , baikunthpur area , , hiring of pay loaders for mechanical transfer of coal into wagons incorporated/fitted with weighto meter including levelling , dressing of coal loaded wagons to avoid over/under loading , picking of stones from top of wagons and cleaning of siding railway track with the condition that each racks should be loaded with in free loading time without detention with minimum of 21 rakes per month for total quantity of 28 . 50 lakh te in period of 36 months or 1095 days at katora siding of katkona sub area . , total impact of gst for the purpose of ctc