bids are invited for custom bid for services - 378600.00 survey or market research services/ program evaluation or assessment survey services/feedback survey work services for infrastructure development for induction for hpr at af stn dinjan. standard penetration test mobilization charges of tools & plants alongwith accessories, materials, labour, supervision etc at site of work required in connection with boring & testing work, including setting up boring rigs etc and also incl withdrawl of same from the site after completion of work, complete all as directed and as speified below:- (a) for sub surface investigation soil exploration shall be carried out as per is 1892 : 2021 or latest amended/revised codes of practice for sub surface investigation for foundation, is 10042 : 1981 (reaffirmed 2002) or latest amended/revised code of practice for soil investigation for foundation in gravel-boulder deposit. (b) boring of 150mm dia to be carried out through any type of sub soil stratas from ground level to 10 mtr (n>50) or (depth of refusal wherever is meet earlier). if refusal encounters before mentioned depth of bore, another bore shall be carried out at a radial distance of 2mtr. if refusal encounter continues on the next location, it shall be carried out upto total 04 nos of bores to eliminate the probability of local refusal due to boulders/pebbles without any extra cost to the department. total no of bores to be carried out 07 nos total quantity :