I updated the date in the post. But the old URL has already gone viral and people end up in a deadlink as "page not found". I tried using Simple 301 Redirect WordPress Plugin and also Permalink Redirect WordPress Plugin. But it does not seem to work.
I want to redirect from http://www.example.com/2014/02/20/events-2014/
to http://www.example.com/2014/03/02/events-2014/
Also all my Mobile apps are synced to the website. I do not want them to get affected because of this redirection.