supply of book of leavesbook of leaves,book of 50 leaves ruled size: 20.5 x 33 cm. printed east central railway in hindi and english [1]paper to be used white printing of 60 gsm as per is no.1848/2007. [2]cover pulp board white of 275 gs m of white colour as per is no.4664/86 [ grade - g]. [3]binding quarter bound flash. [ warranty period: 3 0 months after the date of delivery ] ] , ruled register as per is no.5195/1969 size: 20.5 x 33cm. consisting of 100 leaves. quality o f paper - printing paper white to is: 1848/ 2007 of minimum 60 gsm. ruling: faint ruling of 30 single and o ne at top in double line with blank space at top of 3 cms plus minus 0.3 cms. binding: thread stitched with cotton thread of at least 9 cord and bound with two binding cloth tape in size 2.5 x 7.5cms plus minus 0.3 c ms. fixed equally on both the inside with straw board cover binding cloths in size5 cms. width plus minus 0 .5 cms is to be pasted on the spine of the register. hard straw board of minimum 675 gsm confirming to is: 2617/2006. [ warranty period: 30 months after the date of delivery ] ] , book of 150 leaves ruled 20.5 x 33cm.printed east central railway in hindi and english [1]p aper to be used white printing of 60 gsm as per is no.1848/2007.[2]cover straw board 57 dkg of 1131 gs m as per is no.2617/2006 with cover to be pasted paper brown kraft of 60 gsm (3)binding quarter bound fl ash. [ warranty period: 30 months after the date of delivery ] ] , book of 200 leaves ruled size: 20.5 x 33 cm. (1)paper to be used white printing of 60 gsm as per is no.1848/2007. (2)cover straw of 68 dkg, 1350 gsm as per is no.2617/2006 with cover to be pasted paper brown kraft 60 gsm. (3) binding quarter bound flash. [ warranty period: 30 months after the date of delivery ] ] , book of 250 leaves ruled size:20.5 x 33 cm.printed east central railway in hindi and english [1]paper to be used white printing of 60 gsm as per is no.1848/2007.[2] cover straw of 68 dkg, 1350 gsm as per is no.2617/2006 with