BSNL service is good, network coverage also is good my dad using BSNL since 10years recently there launched 3g service that 3g service speed is very good the most important thing is BSNL roaming is free.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.