I need to put a diacritical dot over a character, and
a dot under another character in Tamil/malayalam.
The usual TeX commands \.{} and \d{} do not seem to work here,
even if I use double parenthesis \.{{ }} or \d{{ }}.
The followinmg does not work
\def\tam{\fontspec[Script=Tamil]{Latha}}
\tam
\d{{\tam ரி}} \.{{\tam ரி }}
Any help will be appreciated. Thanks in advance.
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