Here are the steps to install mod_fcgid on RHEL/CentOS:
Step 1: To install mod_fcgid on CentOS / RHEL , first we will install EPEL repo .
#rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
Step 2: Now install the mod_fcgid
#yum install mod_fcgid
Step 3: to confirm package installed.
#rpm -qa|grep mod_fcgid