biometrics target?
Disclaimer 1: I am a strong opponent of Aadhaar (UIDAI) and I see Aadhaar issues everywhere so this may be some sort of bias on my part.
I know two people who took a Reliance Jio sim. Both were issued on the basis of India's new "papers please" card. In one case, the person was asked to submit his fingerprint to verify. (The other I could not reach in time to write this comment).
Disclaimer 2: As you can see, the sample size is ONE. Caveat reader!
That said, I strongly suspect that whoever snarfed the data (possibly our 'friendly" neighbour to the north) was after the fingerprint details, because everything else is already easy to obtain from other channels.
If the bank accounts (now forced to be linked to Aadhaar by our "papers please" government) of any of these people start seeing "action", we'll know for sure.
(The only defense Reliance will have if this happens is "there are so many other places people could have got these details". Sadly, that is also true!)