shows previous records after delete on page

[eluser]Farid[/eluser]
i am listing my records in a page and have the delete link aside to each record, when i press the the link, it goes to specified controller's method and delete the record after that i set a flash message successful deletion and redirect to same page, but when it come back to page it loads previous data, and do not show flash message, but when i refresh the page it shows flash message as well as updated list of records.

why is this, please help me, i spent a lot of my time on it and got stuck.