How were Harappa/ Mohenjo-Daro, Dravidians and Aryans interconnected? (Who came first; who came next; who came last? How were the societies the same? How were they different? Where in the Indus Valley did they live? How did they interact with each other?)

Americans often speak of their country as one of several large regions.  these regions are cultural units rather than governmental units --  formed by history and geography and shaped by the economics, literature and folkways that all the parts of a region share. what makes one region different from another? a region's multicultural heritage as well as distinct demographic characteristics like age and occupation make regions different and special. within several regions, language is used differently and there are strong dialects. there are also differences in outlook and attitude based on geography. 

An official paper ordering a person to appear in court under penalty for failure to do so is called a subpoena

Um is this question innappropriate?