supply of spares and service trays for cdu column 10-c-01 of koch chemical make at paradip refinery , supply of trays for cdu column 10-c-01 of koch chemical make at iocl paradip refinery as per details in tech . specfication / enquiry cum offer . , superflux tray#5-16 parts , 4 pass , ss 410s , site supervision charges beyond 6 days:00010 per diem charges for 12 hours supervision charges shall include local conveyance , travel cost from bhubaneshwar to paradip and back , lodging and boarding at paradip , all local travel at paradip and all incidental costs , transportation , local travelling , out of pocket allowance , etc . , site supervision charges beyond 6 days:00020 air fare to & fro economy class airfare from baroda to bhubaneshwar for single trip: payments shall be made extra at actuals against submission of documentary evidence .