bids are invited for one skilled maintenance co-ordinator for 6 days in a week for the period of 12 months , one unskilled maintenance co- ordinator for 6 days in a week for the period of 12 months , jointing of 10 pair armoured telephone cable , jointing of 20 pair armoured telephone cable , splicing , laying of 6-core ofc through excavation machine , laying of 6-core ofc by manual digging , laying of 6-core ofc in hdpe pipe bymanual digging , laying of 6-core ofc in hdpe pipe throughexcavation machine , laying of 10 pair armoured telephonecable through excavation machine , laying of 10 pairarmoured telephone cable by manual digging , concretechamber total quantity : 724