Error 500 when accessing URL - Centos 6 (selinux disabled) - NGINX - PHP-fpm and GITList

Error 500 when accessing URL - Centos 6 (selinux disabled) - NGINX -
PHP-fpm and GITList

Installed Centos 6 (selinux disabled) - NGINX - PHP-fpm and GITList. when
I access my URL I get a server error (The website encountered an error
while retrieving http://git.sastratechnologies.net/. It may be down for
maintenance or configured incorrectly.)
Here is what I did 1. Installed php (php and php-fpm) 2. Configure php
(cgi.fix_pathinfo=0) 3. Configure /etc/php-fpm.d/www.conf and replaced
user and group with nginx 4. Changed nginx default.conf and increased
worker process to 4 5. Created a virtual host by mapping an URL. Tested
with php.info and found it working 6. Removed php.info. 7. Followed the
instructions on github and installed gitlist by cloning, created cache
directory, made it writable, changed paths in config.ini 7. Used the nginx
virtual host configuration provided in the installation instructions on
GitHub(I noticed the listen directive missing. I had to Include the listen
directive to listen on git.sastratechnologies.net without it I was being
redirected to the other vhost that had bugzilla. Changed the paths
appropriately restarted nginx 8. Accessed the URL and I get the server
error 500 9. Access log has the entry (122.164.43.240 - -
[14/Aug/2013:14:47:13 +0000] "-" 400 0 "-" "-") and Error logs do not have
entries
I then went on to install Osticket and used the VHOST configuration
provided in the NGINX wiki, I get the same error. Has anyone had a similar
experience. Would like to hear from you.