supply of station master diary (opt-48) , station master diary (opt-48)1.(size a/4 (21.5 cms x 30.5 cms plus/minus 0.5 cm s).2. unit: each book of 100 leaves.3. numbering : nil.4. printing: both side in black ink.5. t ext: bilingual (hindi and english).6. paper; 70 gsm white maplitho paper.7. cover page: 90 gsm brown kraft paper.8. binding: 2(two wire stiches centrewith cover).9. proof: it sho uld be approved by cos/bbs or his authorized representative before final printing. spec n: 1.(size a/4 (21.5 cms x 30.5 cms plus/minus 0.5 cms).2. unit: each book of 100 leaves.3. nu mbering : [ warranty period: 30 months after the date of delivery ] ]