providing assistance in instrumentation data collection and departmental survey work of tld-iv ps , kalijhora , assistance in collection of instrumentation data and departmental survey work of tld-iv power station by providing 1 no . highly skilled , and 1 no . semi-skilled for collection of instrumentation data and 2 nos . semi-skilled and 6 nos . unskilled for holding of prism , targets , reading of height of target etc . , carrying & shifting of instrument from one station to other station and all intermediated station of all components and accessories , erecting of temporary pegs , cutting and cleaning of bushes and traces etc . as required at site as per the direction of eic . , supply of ppe items as per annexure -i