I was just checking is there any other open source indic fonts, supporting locl opentype feature, but i did not found any other.
In Lohit now we have locl feature, so we have added locale specific shapes for Nepali Language.
One can test this by Typing "क्र" in gedit or in firefox, open this file with firefox ro gedit in ne_NP locale and see same with any other locale as well.
One can easily observe shape difference. There are some difference in uses of Devanagari in each language, will be good if we get some document about this difference we will happy to implement it in lohit.