RewriteRule causing 403

I restored a website from webarchive so it has files with file names like:

blog.html
blog.html%3fstart%3d10
blog.html%3fstart%3d20
blog.html%3fstart%3d30

And the pagination was working with links like blog.html?start=10 etc.

So I need simple redirect. My .htaccess looks like the following, but getting 403 error. Please advise

RewriteEngine On
RewriteCond %{ENV:REDIRECT_STATUS} =""
RewriteCond %{QUERY_STRING} !=""
RewriteRule ^(.*) /$1\%3F%{QUERY_STRING}