documentclass[a4paper, 11pt]{book}
usepackage[T1]{fontenc}
usepackage[utf8]{inputenc}
usepackage{newtxtext, newtxmath}

usepackage[pagestyles]{titlesec}
 titleformat{chapter}[display]{bfseries}{Largechaptername~thechapterendgraftitlerule[1pt]}{-3ex}{LARGEfilleft}%

usepackage{lipsum}

begin{document}

chapter{Introduction}

lipsum[1-5]

end{document}