Hi Dagmar
Surprising!! it works now.
Steps followed
1. Initially it did not work when i clicked on "Show All Version" button on the dash board.( i tried this yesterday as well as today and it did not work)
2. Hence i manually changed the flag status of "is_default" column in "Form definition version" table of the database.
3. To recheck on steps indicated by Dagmar, I again unpublished the form and then logged out .
4. Logged in and followed Dagmar's steps and it works fine. I am able to see the form.
Thanks Dagmar
Regards
Swetha