etc.
all of these C139 phones are the only receive 850 and 1900 MHz bands, *not* 900 or 1800 MHz, thus I don't see how they can be useful to you in India if your local GSM services are in the bands which these phones can't receive.
oh sorry i forgot it . your right . here also 4g is working in frequency 2xxx ( they says 3g band sharing for 4g ) so mot cxx canceled .