Hi Sanjay,
Are you doing file upload or import.
In file upload there are two type of transfer "Attribute" and Language dependent text.
When you are using the type of transfer Attribute, you need to maintain the description in the COA language in the uploading file. and then upload.
If you want description in any other language, then use type of transfer Language dependent text and create a file for upload with different language keys.
Regards,
Reema