Numbering and Centering Verse in XeLaTeX

Question

I have followed the steps provided in this answer. But in my case the numbering in coming in the left side of the page. but i want it to appear on the right side.

This is how I defined shloka (verse) environment.

%% Verses
\usepackage{varwidth}
\newcounter{verse}
\setcounter{verse}{0}
\newenvironment{shloka}
  {\refstepcounter{verse}
   \equation
   \let\theequation\theverse
   \varwidth[b]{\linewidth}
  }
  {\endvarwidth
   \endequation
   \addtocounter{equation}{-1}
  }