Dear Krishna
you need to look for help of an "ABAPer". The data collection is done based on informaiton in the SAP SD process. If for any mode of transport (truck, road, rail) it works fine but not for "sea" (IMDG) then either the data is the probnlem or the print form routine is the problem. Based on what i read "between" the lines: for material as effected there is only one UN Number maintained for IMDG regulation
As explained: the form print routines are >90% customer specific so there is no resal help possible
C.B.