bids are invited for custom bid for services - sr number 1 geotechnical investigation boring 150 mm diameter boreholes on land upto 20 m depth , custom bid for services - serial number 2 geotechnical investigation boring 150 mm diameter boreholes on water upto 20 m depth , custom bid for services - serial number 3 geotechnical investigation boring 150 mm diameter boreholes on land 20 to 30 m depth , custom bid for services - serial number 4 geotechnical investigation boring 150 mm diameter boreholes on water 20 to 30 m depth , custom bid for services - serial number 5 geotechnical investigation drilling in land , custom bid for services - serial number 6 geotechnical investigation drilling in water , custom bid for services - serial number 7 conducting laboratory tests on soil samples , custom bid for services - serial number 8 conducting laboratory tests on rock samples , custom bid for services - serial number 9 carrying out chemical tests of soil and water samples , custom bid for services - serial number 10 obtaining scour depth of river bed as per scope of work , custom bid for services - serial number 11 preparation and submission of final report as per scope of work , custom bid for services - serial number 12 preparation and submission of proposed hdd profile for river crossing as per scope of work