/etc/ is in ttf-indic-fonts-core 1:0.5.11ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/etc/fonts/
/etc/fonts/conf.avail/
/etc/fonts/conf.avail/90-ttf-bengali-fonts.conf
/etc/fonts/conf.avail/90-ttf-devanagari-fonts.conf
/etc/fonts/conf.avail/90-ttf-gujarati-fonts.conf
/etc/fonts/conf.avail/90-ttf-kannada-fonts.conf
/etc/fonts/conf.avail/90-ttf-malayalam-fonts.conf
/etc/fonts/conf.avail/90-ttf-oriya-fonts.conf
/etc/fonts/conf.avail/90-ttf-tamil-fonts.conf
/etc/fonts/conf.avail/90-ttf-telugu-fonts.conf
/etc/fonts/conf.d/
/etc/fonts/conf.d/90-ttf-telugu-fonts.conf
/etc/fonts/conf.d/90-ttf-tamil-fonts.conf
/etc/fonts/conf.d/90-ttf-oriya-fonts.conf
/etc/fonts/conf.d/90-ttf-malayalam-fonts.conf
/etc/fonts/conf.d/90-ttf-kannada-fonts.conf
/etc/fonts/conf.d/90-ttf-gujarati-fonts.conf
/etc/fonts/conf.d/90-ttf-devanagari-fonts.conf
/etc/fonts/conf.d/90-ttf-bengali-fonts.conf