Thanks for the libotf PKGBUILD. But as I mentioned, there is already one in AUR ( http://aur.archlinux.org/packages.php?ID=16709) . I will check this one out. i found what i was looking for in the scim-tables package. I was looking for an input method called Swanalekha. it is there in both m17n and scim- tables. I have what i need now. But since we started this we will finish it off. :) Will check the script and report back.