I live in village area of gorakhpur city where network coverage of maximum sim card are very low. I heard about the jio sim that it is providing free data free voice and vedio call and free message on any network so I bought this sim card and I was supprised to see its network coverage in mt village its network coverage was very good.
Coustmer service is very good I faced some problem with this sim card so I called to coustmer care to solve my problem and my problem was solved just in 24 hrs only it coustmer service is good enough.
It charges and billing is very low it provide 1 gb data at just 50 rs only so I find it is the best sim card in billing also. Have a try of it.