construction of drain work - u . p . vidyalaya krishnapur ( mistani ) se talab tak nala nirmaan karya , e/w in exacavation in trenches for foundation etc all complete as per s . i . no . 251 , providing and laying in cement concrete 1:4:8 ( 1 cement :4 fine sand : 8 graded stone aggregate 40 mm nominal size ) and curing complete , including cost of farmwork in foundation or sub base . as per s . i . no . 279 , class - 150 brick work in 1:4 cement and fine sand of 1 . 25 fineness modulous mortar in foundation and plinth including supply of all materials , labour and tools and plants etc . required for propper completion of work as per s . i . no . 305 , 12mm thick plastering in 1:4 cement and f/sand mortar in single coat of fair side of wall as per pwd si no 582 ( iv ) , providing and laying cement concrete in 1:2:4 ( 1 cement : 2 c/sand :4 gradded stone aggregate 20 mm nomonal size ) including supply of all material , labours and t&p etc . required for proper completion of the work up to plinth level . as per si no 279 ( a ) , r . c . c . work in 1:2:4 cement concrete with 20 mm guage grit etc all complete as per s . i . no . 283 , ms iron work for above item , earth filling back side item , supply and fixing of 20 mm thick granite stone information patiya 75cms x 60 cms size with m0150 class work in 1:4 cement , f/sand mortar etc all complete