The Hind Siliguri typeface contains malformed glyphs for Bengali Digit One "১" in its regular, medium, and semi-bold weights. I've fixed these for my personal use and decided to share here until original sources and distributions are updated.

original glyphs	fixed glyphs

Note on sources

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The build instructions in ITF's repo seem outdated, so I've edited their published TTF files in fontforge, creating the SFD and TTF files available in this repository.