\documentclass{article} \usepackage{polyglossia} \newfontfamily\sanskritfont[Script=Devanagari,Mapping=RomDev]{Sanskrit 2003} \setmainlanguage{sanskrit} \begin{document} aṃśa ``` अंश ``` \end{document} 
\documentclass{article}
\usepackage{polyglossia}
\newfontfamily\sanskritfont[Script=Devanagari,Mapping=RomDev]{Sanskrit 2003}
\setmainlanguage{sanskrit}
\begin{document}
aṃśa
\end{document}
