Fedora team has been closely working with Swathanthra Malayalam Computing(SMC) team to get most of the SMC patches upstream and setting up Malayalam has been relatively easy on Fedora. Since most of the patches have gone to upstream fedora you don't have download any rpm other than Swanalekha (Malayalam transliterator) on your own to be able to read and write Malayalam on a Fedora 9 machine. Follow the basic instructions to set up Malayalam on Fedora 9.