Invitation of Tender for Supply of Non-Consulting Services under Category-1: Technician, Supervisor and Category-5: Unskilled Labourer, Assistant Cook, Cleaner, Chowkidar and Similar Service for Bakhrabad Gas Distribution Company Ltd. (BGDCL)'s different offices (Dhaka, Cumilla, Brahmanbaria, Chandpur, Noakhali, Feni, Lakshmipur and other areas of BGDCL's franchise area