Hi Neminath
I have faced this issue earlier.
The problem was with "CONVERSION EXIT".
Although you say that you have uploaded it with leading zeroes as you can see in the table entries : But this might not be the actual case. Issue is : during uploading those entries without conversion exit or whichever way you uploaded but was not same for the one which you are facing problem.
Since mine was a quality system , I deleted all the entries and uploaded it again.(worked for me).
But in your case since it is production system.
I suggest you to find those entries in production .Upload again(Using Conversion routine) in development
system and release it to production through CUSTOMIZING TR.
Then delete the duplicate entries in production(if any).
That is the only possible solution.
Thanks
Kishan Shah