Labours for front crew and back crews, Line Checkers/Trouble Shooters with License, GPS Operator, Dozer Pusher /HSE Assistant, Journey Manager/Transport Assistant, Light Duty Driver with ADDC License, Heavy driver with valid ADDC/Tanker Driver with DDC04, Vibrator Operator/ Vibro-Pushers, Line Foreman/ Foreman Head, Senior Surveyor, Surveyor, Permit Man/PRO, Electrician/Welder, Vibro-Mechanic/Vehicle Mechanic, Carpenter, Mason , Work-Shop Mechanic, A/C Technician, Cable Repair Chief, Cable Repair, Store- Keeper ,Plumber, Watchman/Geophone repairer Man.