/etc/fonts/conf.d/65-0-fonts-taml-tscu.conf is in fonts-taml-tscu 1.0-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /etc/fonts/conf.d/../conf.avail/65-0-fonts-taml-tscu.conf
/etc/fonts/conf.d/../conf.avail/65-0-fonts-taml-tscu.conf