supply of st 47:- challan book a6 o/s bks. printing in bi-lingual , st 47:- challan book a6 o/s bks. printing in bi-lingual (hindi and english as per specimen /matter. proof should be got approved before printing. to be machine serial numbered in 06 to 08 digits as per alpha numeric series and serial number allotted.printing in black ink on 60 gsm maplitho white p aper conforming to is no. 1848/2007 as amended up to december-2016.the paper manufactured out o f pulp containing not less than 60 percent by weight of pulp made from materials other than bamboo,h ardwoods, softwoods and reed.150 leaves,side stich with printed cover page of 130 gsm as per is 1848 /2007 as amended up-to-date. ]