This trick is tested in West Bengal sim and its fully working here and many of states. I got 4Gb data for a month validity with 7.2mbps speed. I tried it in more then 5 number and its working in every number (old & new both). First buy a extra sim (you can use this trick on your old number) and activate 3G by sending sms “3G” to 121. After reply 1 for data plan changes and again reply 13 for 4gb data plan (rs-750/months). don’t worry about your any balance just you have to maintain your balance below 100 (we recommend you to try this trick at minimum balance). you will get a reply to get confirm reply 1, send the sms. Now you done all the steps.
wait 5 minutes and check your main balance and you can find 1rs extra talktime in your balance for free. let if you tried it in 0balance then now your balance is 1 Rs. You can check your 3G balance by pressing *123*11# .
Note: Try at 0 or minimum balance.
