Not sure if this is new. But this just came through google alerts.
Plus the Rs. 49 plan seems to be listed here for JioPhone.
Prepaid Recharge Plans - Online Prepaid Mobile Recharge | Jio
Prepaid Recharge Plans - Browse online prepaid recharge plans & enjoy high-speed 4G connection only with Jio Recharge Plans. Recharge Now!
www.jio.com
Plus the Rs. 49 plan seems to be listed here for JioPhone.