relaying of kerb and channels at nandalal bose lane, nivedita lane and other roads in ward-007 under borough-i.-- 1 taking out stone slab of kerb & channel of road side drain and stacking as directed.b) flat channel stone. ( ref :rate based on pwd current sor. [pwd(b)2017,p-303]) 2 taking out stone slab of kerb & channel of road side drain and stacking as directed. a) vertical kerb stone. ( ref :rate based on pwd current sor. [pwd(b)2017,p-303]) 3 cement concrete with graded jhama khoa (30 mm size) excluding shuttering in ground floor and foundation. (b) 1:4:8 proportion ( ref :pwd (bldg.)-2017, it. no. 1, page no.23 & 3rd corrigenda addenda dtd-04.06.18, p-9 & 10) 4 resetting of stone slabs of kerb & channel of road side drain to correct line and level including cement pointing (1:2). a) vertical kerb ( ref :rate based on pwd current sor. [pwd(b) 2017, p-303 & 3rd corri. addea dtd-04.06.2018. p-52 ]) 5 resetting of stone slabs of kerb & channel of road side drain to correct line and level including cement pointing (1:2). b) flat channel stone. ( ref :rate based on pwd current sor. [pwd(b) 2017, p-303 & 3rd corri. addea dtd-04.06.2018. p-52 ]) 6 supplying and laying factory made vertical kerb stone of cement concrete m-20 (1:1.5:3) machanicaly vibrated size 500mm x 350mm x 150mm tapered at top, making joints with cement mortar (1:4) incldg cost of all materials and labours but excluding the cost of under bed (for road-diveder / footpath) ( ref :rate based on pwd current sor [pwd(b) 2017, p-26 (it -10(i)), consumption chart pg-b-60, sl-3 and annex-ii , format-a & 3rd corr. & adda. dtd-04.06.2018, p-303 , p-191 (i -6) 7 supplying and laying factory made flat channel stone of cement concrete m-20 (1:1.5:3) machanicaly vibrated; size 500mm x 300mm x 100 mm; making joints with cement mortar (1:4) incldg cost of all materials and labours but excluding the cost of under bed (for road-diveder) ( ref :rate based on pwd current sor [pwd(b) 2017, p-26 (it -10(i)), consumption chart pg-b-60, sl-3 and annex-ii , format-a & 3rd corr. & adda. dtd-04.06.2018, p-303 , p-191 (i -6) 8 building works (b) dismantling, cutting chase, holes etc 2. dismantling all types of plain cement concrete works, stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m in ground floor including roof. (a) upto 150 mm. thick