The [Hind Siliguri](https://fonts.google.com/specimen/Hind+Siliguri) typeface contains malformed glyphs for Bengali Digit One "১" in its regular, medium, and semi-bold weights.
Original source is here: https://github.com/itfoundry/hind-siliguri.
The build instructions in ITF's repo seem outdated, so I've edited their published TTF files in fontforge, creating the SFD and TTF files available in this repository.