I have bought a new one through prebooking.Its a good phone for the network and battery back up , but it is performing and operating on operating system KaiOS , which was failed in market before few years because of its worst performance and still not working & performing properly through this Jiophone.Otherwise other features of this phone like 2000 mAh battery , 4G network , T.V.connectivity etc. are good enough for the given value.also have good customer service and charging, billing.
either its operating system should be change or it should improve.