^ Now your phone eating more battery after using Jio, this can cause because of following reasons:
01. Jio 4G Signal is week in respect to Airtel's 4G in your location
02. Jio's speed is good & phone consuming more data
03. Jio using 2300 MHz, 1800 Mhz & possibly 850 MHz signal in your circle & your phone continuously trying to get higher frequency signal
04. Jio Apps are battery hogs, try to uninstall them & check the battery consumption.