This was some shit reporting back when bitcoin was around the ATH. (Dec/ Jan 2018). The article you quote in turn
quotes this article as its source..
There is typical rumor mongering there. The article quotes, as usual, an anonymous source.
“The company plans to hire 50 young professionals with average age of 25 years for Akash Ambani to lead. There are multiple applications of blockchain (for the company). The team would work on various blockchain products,” a person familiar with the development said on condition of anonymity.
Then as usual the mail sent for official response from reliance remained unanswered.(As it generally remains with such speculations)
“One (application) is cryptocurrency. We can deploy smart contracts. It can be used in supply chain management logistics. Loyalty points could altogether be based on JioCoin,” the person cited above said, adding that all of this was “in proposal stage”.
An email sent to Reliance Jio seeking a response remained unanswered till press time.
This news was doing rounds in the India forum back then too. Pretty sure that nothing concrete materialized out of it. We do have to thank Reliance Jio for enabling the data infrastructure to keep things like mining and cryptocurrency have a chance at being mainstream.