Colony (n) is a country or area under the full or partial political control of another country and occupied by settlers from that country.

Colonisation (n) is a process by which a central system of power dominates the surrounding land and its components.

By those definitions, neither India nor any region of it is a colony of a dominant society, community or country anymore. However, India and its population is no longer a nation that is defined by its physical presence alone either. We are all living our lives within the geographical boundaries of India and within the virtual boundaries of Facebook, Twitter, Instagram, Google, Airbnb, Uber, and hundreds of other mobile apps.