Abstract
A majority dominating set S ? V (G) is said to be majority dominating chromatic set if S satisfies the condition ?(hSi) = ?(G). The majority dom-chromatic number ?M?(G) is the minimum cardinality of majority dominating chromatic set. In this article we investigated some inequalities on Majority dominating chromatic sets of a connected and disconnected graph G. Also characterization theorems and some results on majority dom-chromatic number ?M?(G) for a vertex color critical graph and biparte graph are determined. we established the relationship between three parameters namely ?(G), ?M(G) and ?M?(G) for some graphs.