bids are invited for custom bid for services - ground survey total quantity :-involves topography of 125 acres of administrative area and ground penetration radar ( gpr ) survey of 75, 000 sq mtrs of the units administrative area in which the super structures viz, buildings, electric poles, electric installation, roads, trees, grounds, ets i.e all above ground structures must be mapped on the map along with underground assets viz, ( lt & ht electric cables separately indicated, pipelines with their diameter, sewage lines, manholes, ofc cables of different users i.e unit lan, ncn network, cctv network must be distinctively visible