airtel existing SIM card is ready to use 3G, so any airtel subscriber can use 3G anytime if he/she is under 3G coverage and activated 3G services
Activate 3G:
1) any 3G internet pack subscription will ensure your provision to 3G
2) Without activating any 3G internet pack if you want to activate 3G, write “START3G” and SMS send to 5000; You can de-activate your 3G services writing “STOP3G” in SMS and sending to 5000”
