How to get 3g speed in 2g sim in tata docomo

For this trick, you must need a balance of at least Rs1.Firstly activate the 2g Internet plan which is suitable for you.After activating 2g Internet plan, dial *141# and then from list select 3G plans and next it will display list of cities then select the city in which you are using it then it will display the list of 3G plans then select the 3G plan which is above then your main balance and activate it.The company will send you a sms that your balance is less and this plan can't be activate.Ignore this message and repeat this process 4 0r 5 times then u will hack a 3G speed on your 2G sim..it will provide to upto 4MB/s downloading speed and it will work only if you city has 3G network.