I changed permalink from /%postname%-%post_id%/ to /%postname%/ only. But the problem is that I can't get any method to redirect 301 old permalink to new one.
I searched google and found this plugin which redirect the old permalink to new one. When I check the HTTP Response Header, it also shows the old page is being redirected to new one but actually in the content it shows 404 page. Here is the example page.
Even when I try to fetch the page in Google webmaster tools, the bot fails to fetch the old page.
Is there any way to fix the problem??