Jio was created with the premise that "data is the new oil" (its parent company Reliance Industries is huge on Oil & Gas). This is seen from the time the company was created and named. The way "Jio" is written officially is a mirror image of "Oil", alluding to the fact that the data collected (or usurped) by it is the most valuable thing.

Jio also collects (or said it would collect) information about its users and their habits through traffic analysis and deep packet inspection. This would feed its ambitions in its other ventures in retail, entertainment and other market segments. India does not have a data privacy or data protection law. So this is all fair game for a company that's close to the government and is good at lobbying.