tubewell digging work near the barupal meghwals daani - construction of tube well after completion of item no. 2.1 & upto 100 mtr. depth and above in all type of rocks by dth system as per is : 2800 (part i & ii) 1779 as amended up to date. the work would be completed after obtaining sand free water. the tube well should have a throughout bore as per nominal bore of casing pipe. nominal bore 200 mm dia. (rate 1263/mtr 2 supply of erw m.s. black casing pipe isi marked (is: 4270/2001) or amended up to date of grade fe 410 of following sizes 200 mm dia nb (thikness of pipe5.4 mm & mass of tube 28.46 kg/m) rate 4473/mtr