Netra,
KTWW is correct, you can make an interpolated cross section into a normal cross section by deleting the asterisk (*) from the end of the river station number. You can do this in the Cross Section Data Editor under Options>Rename River Station…
Note that you can only delete an asterisk within RAS, you can’t add it back. In other words, you can convert an interpolated cross section to a normal one but you can’t reverse the process. That can only be done by editing the river station name in the geometry file with a text editor.