Tata Docomo Secret Codes
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1. Do you want to activate 3G internet Plans.
Its very simple, just call *141*2# to activate various 3G internet Plans.
2. If you dont have the 3G then try 2G Plans.
To activate 2G plans for Gprs internet then just Dial *14185#.
3. If you dont know that how much 3G internet is remaining to know this just Dial *191*5#.