bids are invited for custom bid for services - maintenance activities in telecom section; rectification of on-site telephone complaints. re-installation/ shifting of telephone connection new installation of telephone connection ог providing extension of telephone connection testing of telephone complaints and its status updation in telephone complaint system of telephone complaints. digging trench of width 30cm and depth 1 m except at rocky spots, laying cable in the trench and supply & laying of bricks (4.5 bricks per metre) over the cable laid. after that filling of the trench to the ground level. route diversion at power cable crossing/ sewerage pipe/ drainage line etc. digging trench of 30 cm. wide and depth 1 m in pucca/ cemented/ bituminous road floors; laying cable in the gl pipe/rcc pipe, after that filling of the trench to the ground level. route diversion at power cable crossing/ sewerage pipe/ drainage line etc.