Edit file File name : 65-0-lohit-bengali.conf Content :<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE fontconfig SYSTEM "fonts.dtd"> <fontconfig> <match> <test name="lang" compare="contains"> <string>bn</string> </test> <test name="family"> <string>sans-serif</string> </test> <edit name="family" mode="prepend"> <string>Lohit Bengali</string> </edit> </match> <match target="font"> <test name="family" compare="eq"> <string>Lohit Bengali</string> </test> <edit name="autohint" mode="assign"> <bool>true</bool> </edit> </match> <match target="scan"> <test name="family"> <string>Lohit Bengali</string> </test> <edit name="lang" mode="assign"> <minus> <name>lang</name> <langset> <string>as</string> </langset> </minus> </edit> </match> <alias> <family>Lohit Bengali</family> <default> <family>sans-serif</family> </default> </alias> </fontconfig> Save