Emergency Forced & Scheduled Repair And Maintenance Works Of 33/11Kv 2X10/13.33Mva Sunamganj Substation'S Control Room And Switch Yard Electrical Equipment And 33/11Kv 2X5/6.67Mva Derai'S Switch Yard Electrical Equipments Of Sales & Distribution Division, Bpdb, Sunamganj.