I want to adjust the vertical spacing between minitoc title and the top horizontal rule? This is for bottom hrule
\renewcommand{\kernafterminitoc}{\kern-0.1\baselineskip\kern0.1ex}
I used
mtcsetfeature{minitoc}{open}{\vspace{0.5cm}}
which adjusts the vertical spacing between the top horizontal rule and the contents and not between the title and top rule.