Simple import of Github: Saipraneet/iitdthesis to Overleaf with minor additions
\begin
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\documentclass[BTech]{iitddiss}
%\documentclass[PhD]{iitddiss}
%\documentclass[MS]{iitddiss}
% \documentclass[MTech]{iitddiss}
% \documentclass[Dual]{iitddiss}
% \documentclass[Other]{iitddiss}
% IF YOU USE THE OTHER OPTION, THEN YOU MUST FILL OUT THE PROGRAM OPTION BELOW TOO
% \program{My Fancy Degree}
% \usepackage{times}
\usepackage{t1enc}
\usepackage{graphicx}
\usepackage{hyperref} % hyperlinks for references.
\usepackage{amsmath} % easier math formulae, align, subequations \ldots
\usepackage[english]{babel}
\usepackage[utf8]{inputenc,xcolor}
\usepackage{natbib}
\usepackage{fancyhdr}
\linespread{1.2}
\pagestyle{fancy}
\renewcommand{\sectionmark}[1]{\markright{\thesection\ #1}}
\fancyhf{}
\rhead{\fancyplain{}{\thepage}} % predefined ()
\lhead{\fancyplain{}{\rightmark}} % 1. sectionname, 1.1 subsection name etc
\cfoot{\textcopyright \text{ } \the\year, \emph{Indian Institute of Technology Delhi}}
\renewcommand{\footrulewidth}{0.4pt}
\usepackage{subfiles}
\providecommand{\main}{.} % relative path to master.tex
\providecommand{\cwd}{.} % path of the current directory wrt master
\begin{document}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Title page
\title{\textcolor{red}{DISSERTATION TOPIC SUBMITTED TO IITD}}
\author{\textcolor{red}{Student Name}}
\advisor{\textcolor{red}{Prof. Advisor1, Indian Institute of Technology Delhi\\
Prof. Advisor2, ABC University}}
\entrynumber{\textcolor{red}{Entry Number}}
\date{\textcolor{red}{January 2020}}
\department{\textcolor{red}{Electrical Engineering}}
%\nocite{*}
\maketitle
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Non-Content pages
\input{nonindex/certificate}% Certificate
\input{nonindex/acknowledgements}% Acknowledgements
\subfile{\cwd/nonindex/abstract}% Abstract
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Table of contents etc.
\begin{singlespace}
\tableofcontents
\thispagestyle{empty}
\listoftables
\addcontentsline{toc}{chapter}{LIST OF TABLES}
\listoffigures
\addcontentsline{toc}{chapter}{LIST OF FIGURES}
\end{singlespace}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\input{nonindex/abrv}% Abbreviations
\input{nonindex/notations}% Notations
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\pagebreak
\clearpage
% The main text will follow from this point so set the page numbering
% to arabic from here on.
\pagenumbering{arabic}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Introduction.
\subfile{\cwd/intro/intro.tex}
\subfile{\cwd/conclusion/conclusion.tex}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Appendices.
\appendix
\chapter{A SAMPLE APPENDIX}
Just put in text as you would into any chapter with sections and
whatnot. Thats the end of it.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Bibliography.
\begin{singlespace}
\bibliography{refs}
\end{singlespace}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% List of papers
\listofpapers
\begin{enumerate}
\item Authors.... \newblock
Title...
\newblock {\em Journal}, Volume,
Page, (year).
\end{enumerate}
\end{document}