How to reduce the whitespace above the Chapter title text?

[noisyoscillator]

Would really appreciate if somebody can tell me the trick to reduce the whitespace above the Chapter title text. !

[GR8DAN]

You code try the code to redefine \@makechapterhead in the first answer to How to decrease spacing before chapter title?

Basically add:

\makeatletter
\def\@makechapterhead#1{%
  %%%%\vspace*{50\p@}% %%% removed!
  {\parindent \z@ \raggedright \normalfont
    \ifnum \c@secnumdepth >\m@ne
        \huge\bfseries \@chapapp\space \thechapter
        \par\nobreak
        \vskip 20\p@
    \fi
    \interlinepenalty\@M
    \Huge \bfseries #1\par\nobreak
    \vskip 40\p@
  }}
\def\@makeschapterhead#1{%
  %%%%%\vspace*{50\p@}% %%% removed!
  {\parindent \z@ \raggedright
    \normalfont
    \interlinepenalty\@M
    \Huge \bfseries  #1\par\nobreak
    \vskip 40\p@
  }}
\makeatother

Before \begin{document}, here is the before and after from adding the code above: