yearly day to day repairing, maintenance & operation of secondary grid d.i pipe lines of different diameters including glr cleaning for mograhat-i block under augmentation of laying distribution system including new ohr and allied works to extend the benefit of 100% household in 11 nos. zone under mograhat-i block within mega surface water based water supply scheme of falta-mathurapur dist. south 24-pgs. under south 24-pgs. water supply division-i, p.h.e. dte. (sm/14726) [for 01 (one) year]- 1 operation and maintenance for secondary grid d.i pipe lines of different diameters including glr cleaning for mograhat-i block under augmentation of laying distribution system including new ohr and allied works to extend the benefit of 100% household in 11 nos. zone under mograhat-i block within mega surface water based water supply scheme of falta-mathurapur dist. south 24-pgs. under south 24-pgs. water supply division-i, phe dte. [annexure-i] 2 daily operation and maintenance by opening and closingsluice valveof all diameters over the rising main and when necessary and as per disrection of e.i.c. or his authorised representative by engagingone semi skilled labour includingcleaning the valve chamber, dewaterring etc. complete. 3 daily wages of valve operation cum guard to be paid = rs. 465.57 (this is including bonus @ 8.33% & excluding rs. 62.00 as employees contribution of epf @ 0.75% & es @ 12.00%)[base labour rate/day = rs. 487.00]total including bonus @ rs. 8.33% = (rs. 487.00 x 8.33%+ rs. 487.00) = rs. 527.57overhead expenses @ 5% = (rs. 487.00 x 5%+ rs. 527.57) = rs. 551.92 4 adding employers contribution of epf @ 13% & esi @ 3.25% = rs. 684.00]1 man x 365 days = 365 mandays 5 provision for additional payment towards labour rate only if the presently considered labour rate (i.e. rs. 487/-) is increased by govt. order effective within the considered period of work.[fund provision has been kept to accommodate antipatory rate enhancement upto 10%] 6 add gst @ 18% on all items (excluding it. no. 5 to 7 of annexure-i) 7 add cess @ 1% on all items (excluding it. no.5 to 7of annexure-i) including gst