/usr/share/myspell/dicts/hyph_mr_IN.dic is in hyphen-mr 0.7.0-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/myspell/dicts/../../hyphen/hyph_mr_IN.dic
/usr/share/myspell/dicts/../../hyphen/hyph_mr_IN.dic