I think either this was a duplicate of bug 131294, as Evan suggested, or else a network connection to the archive wasn't available during installation (since Tamil support doesn't fit on the CD). Per bug 9392, Intrepid now displays a desktop notification if you end up installing with incomplete localisation like this.
I think either this was a duplicate of bug 131294, as Evan suggested, or else a network connection to the archive wasn't available during installation (since Tamil support doesn't fit on the CD). Per bug 9392, Intrepid now displays a desktop notification if you end up installing with incomplete localisation like this.