a) installation of two nos. of pump i.e. one 6000gpm pump(new) and another 2000gpm on the pontoon at docp, cv area. , labour charges for all bolts, nuts ,opening welded portion cutting by gas and dismantling of pump ,motors,set with bends,suction pipe, foot valve etc taking out from water for re fitting (1times) high skilled - 1ms x 552 = 552 skilled - 1ms x 478 = 478 unskilled - 3ms x 347 = 1041 , cost of 02no. short piece and 01 no. suction bend bend ,01 no. no. delivery bend making by 12 dia ms pipe cutting by gas and both side flange welding double layer fitting and finishing highly skilled - 3ms x 552 = 1656 skilled - 2ms x 478 = 956 unskilled - 3ms x 347 = 1041 , cost of 8 and 10 dia m.s. flange setting with fittings and double layer welding(new pipe 12 nos. 10 and rest old pipe8 ) , labour cost for loading, unloading of 12nos. of pipes from surface to mines skilled - 2ms x 478 = 956 unskilled - 4ms x 347 = 1388 , supply and fitting of r.i. cloth -6mm , labour cost for shifting 8 sluice valve -01 no. and 01 no. non return valve near pump , supply of 8 ms flange , supply of 10 ms flange , supply and fitting of 8 ms nut and bolt 3/4 x 4 (some old nut bolt also replaced) , supply m.s. electrode for welding , manually laying and jointing 8 ms pipes , manually laying and jointing 10 ms pipes , cost of da cylinder -6 cum , cost of oxygen cylinder- -14cum , cost of crane /jcb /excavator loader type of machine , b) diversion of 1st range 8 dia ms pipeline at docp borira quarry 630 (approx.) for dewatering of mines water at docp for coal production. , labour charges for handling and placing manually of 8 dia ms pipe approx 630 high skilled - 6ms x 552 = 3312 skilled - 8ms x 478 = 3824 unskilled - 4ms x 347 = 1388 , labour charges for 8 ms flange fitting and welding with 8 dia ms pipe double layer including making 8 ms bend 2 nos. and 8 ms shoft piece 2 nos. , labour charges for manually loading & unloading of 8 ms pipe bend, short piece etc. from docp workshop to borira quarry skilled - 7 ms × 2 days , supplyy and fitting of 8 ms flange (table-d) , supply and fitting of ms nut-bolt as per required size , supply and fitting of r.i. cloth , supply of ms welding electrode , manually laying and jointing 8 ms pipe approx , cost for da cylinder , cost of oxygen cylinder , cost of crane / jcb hiring charges , total impact of gst for the purpose of ctc