I was using WordPress mobile pack plugin which i have already uninstalled but there are too many URLs are indexed in Google with ?wpmp_switcher=desktop parameter. How can i fixed and no index kind of URLs or is there any plugin to fixed this?
Because it still stored those URLs in database when you uninstalled mobile pack plugin. Solution is you need to fix it manually by going to your database, click to wp_posts table and search Guid field, remove all rows that having ?wpmp_switcher=desktop parameter.
You could not find it in wp-admin so you need to find it from your database, I sure this way will help you clear all urls that you don't expect.