Repairing And Replacement Of 04 Nos. Shell Of Snub Drum Of 1600 X 500 X 10 Mm Of Unit No. 201 And 501 Belt Conveyor Of At Madhuban Coal Washery Under Block-Ii Area, Bccl ./Bccl/Po/Mcw/E-Tender/ 2023-24/011/2023_Bccl_280729_1 (EXPIRED)