Added Google Site Verification HTML TAG in old Joomla Templates

Google Console

1. goto search.google.com
2. select right side option, give ur index url
    ex: http://www.infovijay.com
3. go down, select html tag verification.
4. Generate. copy that metatag, apply into your html/php of the main index.
5. Click verify


In your Joomla Template

1. Open filemanager
2. goto public_html/templates/avatar_nine/core/classes folder
3. Open template.php
4. find public function addHead()
{} method and add before return.

sample 

public function addHead() 
{
....
$head .= '< meta name="google-site-verification" content="BTDlLui-sdfdsfdsfdsf4r4454ergdrfgrdfgdfgikORSxw" / >';

return $head;

}