Opera 8.65 airtel gprs trick for s60 mobiles

This trick for free airtel gprs works in s60 mobiles with opera 8.65.You can use free gprs in airtel by following the below steps,
First open opera 8.65 using airtel live and minimise it.
Now open default browser using mobile office and once again minimise it.

Now when you go back to opera you can browse for free.
Download opera 8.65 here
Keep balance below 0.30 paise.