TATA Docomo is one of the telecom operators in India which steals customers' money by activating unwanted (and unknown) services automatically. I just had heard some such news from Internet forums. But when i bought a TATA DoCoMo Sim and began to use it, i experienced it.
On 09/02/2015, i got an SMS. the message was as follows:
Unlimited at 49 is activated at Rs29.41 for 10days.Bal:Rs1.01 at 09-Feb-15 09:02.To stop, Dial or SMS STOP to 155223(Free)
