Tiro Typeworks on Nostr: I wonder if anyone has researched when Kannada subscript consonants began to be ...

I wonder if anyone has researched when Kannada subscript consonants began to be positioned to the lower right of base syllables?

In palm leaf manuscripts, lithography, and early metal types, the subscripts were centered below the base consonant shape (as remains the case in Telugu typography). But somewhere along the way, typographic practice for Kannada changed.

This looks very much like the sort of thing that might have originated in limitations of a mechanical typesetting system.