If you want to activate this plan then just dial *444*550#. After that, you can access unlimited 3G data for 1 hour. But if you want to use in 4G speed then try this simple trick, and this trick converts 3G data into 4G data, after activating this plan just select 4G network.
This trick is working only 10 to 15 minutes in some states of India. So if you want to activate this data offers, read the full post and keep your main account balance zero rupees for any deduction problem