How to send Google a request to Remove the information

when we change url/web page the old version is still present at google search result

for few days until it crawl the site. you can request google to remove the old content from SERP

1. Copy the  URL you'd like removed from Google's index 
2. Navigate to https://www.google.com/webmasters/tools/removals?
3. Paste in the  URL that you'd like removed.
4. Submit your request.