This will help you to configure your system to download packages from NITC fosscell fedora mirror.
Login as root in your system and use the following command to create a file inside the folder /etc/yum.repos.d
touch /etc/yum.repos.d/fosscellfedoraCopy and paste the folowing code into the created file using your favourite editor.
## Nitc fosscell fedora local mirror for fedora 17 and 18
[NITCFedora-updates]
name=Fedora $releasever - $basearch - Updates
failovermethod=priority
baseurl=http://fosscell.nitc.ac.in/fedora/updates/$releasever/$basearch
mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=updates-released-f$releasever&arch=$basearch
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$basearch
[NITCFedora]
name=Fedora $releasever - $basearch
failovermethod=priority
baseurl=http://fosscell.nitc.ac.in/fedora/releases/$releasever/Everything/$basearch/os/
mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=fedora-$releasever&arch=$basearch
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$basearchUpdate packages.
sudo yum install updateReference: Fedora docs