\documentclass[11pt]{exam}
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\begin{document}

\begin{center}
\fbox{\fbox{\parbox{6.1in}{\centering \vspace*{0.2cm}
\textbf{CS6115: Structure versus Hardness in Cryptography
    } \hfill Aug 11, 2021 \vspace*{0.3cm}\linebreak  Lecture 3  : Fully Homomorphic Encryption \vspace*{0.3cm}\linebreak Lecturer: \emph{Shweta Agrawal} \hfill Scribe: \emph{Simran Kumari}}}}
\end{center}

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\end{document}
