Lohit Open Type font for Kannada
[:http://fedora.redhat.com/|Fedora 6] has a new Kannada Unicode (Opentype) font released with the distribution. The font seems to be Kannada the counterpart of Lohit series of fonts for Indian languages.
Recently, a friend of mine brought this to my attention. But, like several other Opentype fonts for Kannada, this one is buggy as well. A close look at the font revealed several critical bugs.
The good thing, though, is that the font is released under [http://en.wikipedia.org/wiki/GPL|GPL]. Anyone can work on it, modify and redistribute it.
Here's a screen shot with a comparison of words typed using Lohit and other fonts:

Interested folks can [:http://rpmfind.net/linux/RPM/fedora/devel/s390/fonts-kannada-2.0.6-1.noarch.html|download the font from here].
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Comments
How difficult is to correct it? Is there any tool to do so?
Well, difficulty depends on the skills and interest of the person or people trying to correct it.
There are good number of tools available. You can use fontforge on Linux and fontlab on Windows. Personally, I've used fontforge and think it is a very nice tool to use.