drilling of bore-drilling of 600 / 450 mm dia bore by using direct / reverse rig machine upto 150 mtr depth for construction of 1.5 cusec state tubewells inprayagraj district.work includes drilling of tubewells, transportation and shiftingof rig machine, allied equipments and other arrangements at drilling site.lowering of recommended ms pipe assembly by ensuring verticality of assembly in proper manner, welding of pipe with socket etc. screaning and feeding of pea gravel after lowering of assembly and washing of bore properly, including cost of t&p and labour charges etc. ( ms pipe assembly, pea gravel and h.s.d oilshall be provided by the department free of cost as per departmental norms and requirements )