Unable to login to joomla admin panel

After doing lot of research one of the solution which I found has worked for me and I would like to share the same with people in need. 

Check if upload_tmp_dir path is configured in php.ini. You can check by creating phpinfo.php file and add the below code in the phpinfo.php<?phpphpinfo();?>Then access the file as domain.com/phpinfo.phpIf it is not mentioned then open the configuration.php file of joomla, check which path is mentioned in "public $tmp_path" and add the same path in php.ini file. If php.ini file is not present then create one in /home/user/public_html/