Any one can explain me how to add zero chapters in table of content

Unnumbered chapters, sections, and so on, are not included in the toc by default. If you want to add them for a given level, use, e.g. for a chapter,

addcontentsline{toc}{chapter}{chaptertitle} right after chapter*{chaptertitle}

If you customise the layout of section titles via the titlesec package, this inclusion can be automatic with the numberless key and the explicitoption, inserting a similar code in titleformat along this line:

titleformat{name=chapter, numberless}{...}{...}{...}{addcontentsline{toc}{chapter}{#1} ...}