TRAI is now issuing the consultation papers for changing the IUC from (current) 14 p to "BILL AND KEEP" system or simply 0p.. COAI is opposing it. Actually just few months back TRAI has reduced the IUC from (previous) 20p to (current) 14p --->> for that also AVoId group has already filed a case against the 6p reduction. So ZERO p IUC implementation is not going to be a simple task. But Jio banks on the fact that IUC may become zero within Dec2016. Even if IUC is reduced to 5p from current 14p, the 149Rs plan allows 2980 calls + number of incoming calls from offline numbers.. So NOT a big deal, imho...
The overages charge is 0.5p / 10KB == 50p/MB approx. == 512Rs/GB.. Sorry, my mistake..
Overage charges for data pack is 0.25p / 10KB == 25p / MB == 256Rs / GB
Overage charges for WiFi data is 0.05p / 10KB == 5p / MB == 51Rs / GB
To be honest, both the NIGHT UNLIMITED and WiFi data are just for the name sake for vast number of people... On a lighter note, While Airtel's Night cheaper data (timing from 12 to 6AM) is for watchmen, JIO's night unlimited (2 to 5 AM) is for thieves.