I am using bsnl since last 8 years.it provide better service but its tarrif plan for call cutter is costly.Network coverage of bsnl is very bad.its 3g service is low price but does not work perfectly.its g and 2g pack are same.The one and only reason to use BSNL is that it is roaming free.Bsnl is an govermant mobile operator so it gives his user full talktime at saturday.bsnl networks all over india but its roaming network covrage is not good talk properly only full singnal.