Hi Praloy
Not sure if you are providing the actual names or not. The segment names and field names cannot contain whitespaces in the configuration. Also, you have typo errors in the naming of the separator parameters: it should be Separator instead of Seperator.
Before even suggesting how to resolve your issue, perhaps you can provide more information on your set up.
i) What PI version are you on?
ii) Are you using FCC on the File adapter or MessageTransformBean on the SFTP adapter?
iii) Provide an example of how the actual XML looks like (instead of just the structure) as well as an example of how the corresponding CSV content should look like
iv) Provide screenshot of your current configuration
Rgds
Eng Swee