Do you mean horizontal line?
Look at your master page to see if it appears there.
You might want to keep a copy of your InDesign document in IDML format so it can be opened in earlier versions of InDesign when your CC2014/15 trial runs out.
Sorry it is a Horizontal line. Yes it is there in my master page also. How do i remove that. please help
Just go to the master page (in the Pages panel) that has the line, select it and delete it.
Thank you very much Derek..It worked