This trick or what ever you may call it, is often used in other operators such as airtel , aircel, reliance and others including vodafone.
The free balance means getting balance without spending money, wondering ??? just ask any other bsnl friend to transfer his / her balance to your bsnl number. this sound so simple but complicated. check the simple procedure then.
All you need to do is send few sms codes to a number from your friends mobile number.
Just from the BSNL now you can transfer the money:
GIFT (BSNL NO.) (Amount)
And Send it to 53733 or 53738
For Eg. GIFT 9480200404 50
Now BSNL Provides A Trick For Transferring Your Balance to your friend Mobile. Warning : Dont Miss use This trick to steal money from your Friends Mobile ..!!
this trick was working a few days ago in uttar pradesh and assam so guys check in your state and comment here.