Firstly we will look into the division of Indian History. What to history mean? 
History means the study of past events / study of changes.

Changes refers to multidimensional changes.
Changes in Polity,
Economy,
Society and
Culture.
India’s Past [Pre-historic to Present Day]We arrive at two important questions. (1) Why study of India’s past was required? (2) How did the history of India was divided? Colonization can be divided into three phases:- Phase 1:- Economic Supremacy Phase 2:- Political Establishment