Nginx giving 502 Bad Gateway in random intervals

[darshan.choudhary]

I am using php 5.3.3 and trying to install php-fpm and on research i came to
know that php-fpm come bundled wirh 5.3.3 but still not able to find it.

http://trainingjunction.in/phpinfo.php

where am i going wrong?

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,239181,239211#msg-239211