Comment by inkyoto

Indian languages, yes, but the story is more complicated with languages that use Indic scripts.

Tibetan, Mon-Burmese and Thai scripts, as an example, all derive from the Brahmi script (through a long and sometimes windy ancestry), but neither reflects the modern pronunciation, hence mind numbing transcription systems.

Tibetan and Burmese languages are particularly notorious for codifying the archaic pronunciation of respective languages that has been frozen in time for centuries. It is a treasure trove for linguists that have got a time machine for free, but I don't think that the same can't be said modern speakers of both languages.