You are right in your analysis. Jio is using a different accounting approach to show that they are profitable. One - Their depreciation model is non-standard vs. what is used by other telecom companies & Two - They are booking the sales of subsidized devices under their retail subsidy - Reliance retail. If there is someone who understand this better, I would like to get more insight.
https://economictimes.indiatimes.com/industry/telecom/teleco...