development of footpath providing interlocking paver block outside of entire playground infront of cluster-ii common area within ward no . 37 under bidhannagar municipal corporation . , labour for chipping of concrete surface before taking up plastering work . , supplying &laying as per irc-sp:063-2004 paver unit of any shade of approved quality as per relevant is code , laid in pattern as directed in pavement , footpath , driveway ( paver block only ) , etc including necessary underlay complete in all respect with all labour and material . [ border concrete if necessary to be paid separately ] . note: sub-grade cbr should not be less than 5 . ( c ) 60 mm thick interlocking designer concrete paver block m35 grade for light-traffic zone , commercial & office complex , tourist resort as per is: 15658-2006 ( over 20-40 mm medium sand bed on 250mm thk wbm / wmm base course & 250 mm thk bound gnaular / granular sub-base course including cost of sand for sand bed but excluding cost of base , sub-base course & subgrade preparation . ) ( ii ) coloured decorative , ordinary cement concrete ( mix 1:2:4 ) with graded stone chips ( 20 mm nominal size ) excluding shuttering and reinforcement , if any , in ground floor as per relevant is codes . a ) pakur variety