Hi Suman,
what would be great to know is if there is any way to control where the filter is saved to:
The workaround of giving the Write right would allow the user to change the report. Thinking a step ahead, as you normally would like to manage access rights on the folder level, you have to give the Write right to the whole folder which allows the user to copy e.g. a new version of a report or any other content to this folder.
Another workaround would be to save a copy of the report to e.g. the user folder, but then the users would not get a new version of the report as they only work on their own copy.
This issue already has been raised by several customers, so I would be thankful for any idea.