bro may be it isn't , as unofficially all telcos jio , airtel & vi seem to have secret unwritten agreement to hike tariffs ,even jio though giving slightly more benefits than other two only less difference of tariifs , even they hike tariff regularly - telecom is in oligopoly ( in future might be nearly duopoly
if no vi , bsnl/mtnl have less impact now it would have become duopoly in which both would end up charging similar more or less .