\ProvidesPackage{gurmukhidigits}
        [2022/11/17 v0.1 %
         Formatting of Gurmukhi digits]

\def\digits#1{\expandafter\@gurmukhi@digits #1@}
\def\@gurmukhi@digits#1{%
  \ifx @#1% then terminate
  \else
    \ifx0#1੦\else\ifx1#1੧\else\ifx2#1੨\else\ifx3#1੩\else\ifx4#1੪\else\ifx5#1੫\else\ifx6#1੬\else\ifx7#1੭\else\ifx8#1੮\else\ifx9#1੯\else#1\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
    \expandafter\@gurmukhi@digits
  \fi
}
\endinput