bids are invited for custom bid for services - tender for m&l, for soil investigation of spt test as per is: 2131-1981 in ordinary soil consisting of clay/silt/sand or their mixture with shell and auger method 10 mtr depth or refusal whichever is earlier and collection of samples, testing of these samples in laboratory for grain size analysis, atterberg limits, water content, cohesion angle of internal friction, specific gravity, wet & dry bulk density etc. and evaluation of safe bearing capacity along with strata logs. in case of soil the depth of 10 mtr or refusal before in case of gravel and hard rock/strata and provide 02 set of hard copy with stamp & signature (original) complete all as specified and directed.