\documentclass[
12pt, % Default font size, values between 10pt-12pt are allowed
%letterpaper, % Uncomment for US letter paper size
%spanish, % Uncomment for Spanish
]{fphw_assignment_toc}
\usepackage{my_packages}
%------------------------------------------------------------------------------------
\title{My Assignment \texttt{\#}1} % Assignment title
\author{My Name} % Student name
\roll{My Roll} % Class roll
\class{My Class} % Class
\session{My Session} % Session
\email{me@domain.edu}
\date{Today} % Due date
\institute{Department of Physics} % Institute or school name
\course{Course Name} % Course or course name
\professor{Teacher Name} % Professor or teacher in charge of the assignment
%------------------------------------------------------------------------------------
\addbibresource{ref.bib}
\setcounter{secnumdepth}{-2}
%\renewcommand{\thesection}{} % https://tex.stackexchange.com/a/30202/114006
%------------------------------------------------------------------------------------
\begin{document}
\maketitle
\pagenumbering{gobble} % to remove the page numbering
\newpage
\pdfbookmark[section]{\contentsname}{toc}
\tableofcontents
\newpage
\pagenumbering{arabic} % to start the page numbering
%-----------------------------------------
\section{Problem 1 Name~\cite{book:zettili}}
\begin{problem}
\lipsum[1][5-6]
\end{problem}
\subsection{Solution:}
\blindtext
\subsubsection{(a)}
\lipsum[2][5]
\subsubsection{(b)}
\lipsum[3][5]
\section{Problem 2 Name~\cite{book:zettili}}
\begin{problem}
\lipsum[4][5-6]
\end{problem}
\subsection{Solution:}
\blindtext
\begin{figure}[!ht]
\centering
\includegraphics[scale=.3]{example-image-empty}
\caption{ \lipsum[5][2]\cite{book:griffiths}}
\label{fig:fig1}
\end{figure}
\newpage
\section{Appendix}
\begin{problem}
\centering \lipsum[6][3]
\end{problem}
{\footnotesize
\blindtext \cite{book:balakrishnan}
}
\newpage
\phantomsection %
\printbibliography[heading=bibintoc, title={References}]
\end{document}
