Hello @kartik,
Try-Username: root
Password:
(No password set).
Sometimes it doesn't get login with username = root and password, then you can change the default settings or the reset settings.
Open config.inc.php file in the phpmyadmin folder
Instead of
$cfg['Servers'][$i]['AllowNoPassword'] = false;
change it to:
$cfg['Servers'][$i]['AllowNoPassword'] = true;
Do not specify any password and put the user name as it was before, which means root.
E.g.
$cfg['Servers'][$i]['user'] = 'root';
$cfg['Servers'][$i]['password'] = '';
Hope this works!!