TechnoSlab

• Select any 2G plan from the following plans and and activate it. 
• Don't recharge directly from retailer. 
• To activate any 2G plan.
• Dial *141#  > Select 2G internet plan > you will see the list of plan > and activate any of them
• It's better to try this method on old simcard.because my 2 friends getting 3g speed this way.
• Note:You can also try this trick on new sim cards.

This is a simple but new trick for docomo users.

You can get 3G speed in any 2G plan using this trick.

This is very simple :

Activate any 2G plan on your mobile. ( like Rs.48 plan )

Now select 3G mode by following these simple steps :

Goto Settings > Network settings
Select UMTS mode.

Tata Docomo,the GSM arm of Tata Tele Services Ltd. has come up with a new GPRS pack for certain telecom circles like Karnataka,Kerala,Tamil Nadu,Himachal Pradesh,Andhra Pradesh etc.This pack is priced at Rs.11.This 2G gprs plan is for moderate users and the all new Rs. 11 pack comes with 150MB data usage and free downloadable content worth Rs. 500 like wallpaper, games,ringtones etc with 2 days validity (day of activation+following day till 11.59 pm) .To activate Rs.11 pack customer need to send SMS as GPRS11 To 121(toll free) or dial *141#.This pack can be activated only by these methods. Customer will be credited with 150MB free data usage and he will also receive a url link from where the free content can be downloaded.After free usage the customer will be charged 10ps/10kb.Free data can be used both in home or in Tata Docomo roaming circle.

This is a brand new recharge trick for tata docomo :

First dial *140# and then select recharge option.

Now enter dis pin no. 336290,326060,565690,589606,326151 and then enter your amount and mobile number. Try dis trick only between 2.30 to 3.30 AM