I made a mini page like below. It compiled without any error, however, I am getting following message in log:
Underfull \hbox (badness 10000) in paragraph at lines 104--109
I am trying to fix above message.
\begin{minipage}[b]{0.4\linewidth}
\dotfill\\
Prof. XYZ\\
Department of XYZ\\
University of whatever, \\
City, Country\\
Date: ............\\
\end{minipage}