Warning: mysql_connect(): Lost connection to MySQL server at 'reading initial communication packet', system error: 113 in /usr/lib/php/config-rel.php on line 2

Call Stack:
    0.0007     788472   1. {main}() /home/realestate/realestateindia.com/htdocs/script-files/bhk_pages/index.php:0
    0.0102    2471928   2. include_once('/home/realestate/realestateindia.com/htdocs/config.php') /home/realestate/realestateindia.com/htdocs/script-files/bhk_pages/index.php:31
    0.0102    2475776   3. require('/usr/lib/php/config-rel.php') /home/realestate/realestateindia.com/htdocs/config.php:2
    0.0102    2476064   4. mysql_connect() /usr/lib/php/config-rel.php:2

The connection can't be established