opearating charges to opearate departmental drilling rig unit (i) landt:lt-575 diamond core drilling rig and lt-535q triplex pump unit and (ii) kores kdr-150 drilling rig and lt-535q triplex pump unit) including operating staff i.e driller, pump operator and helpers/labours at various sites in gujarat under control of the dy. ex. engr drilling sub dn(randb), vadodara on as and when required basis .
