[Resolved]  Tata Sky — getting daily unwanted calls and sms from tata sky

Dear sir,
As mentioned in subject, i am getting daily calls on my cell [protected] since last more than 2 years. Every time i am explaining them that, i am not using any any tata sky.
They have registered my name as altaf shaikh in their system.
But i am not altaf shaikh. My name is dayasagar and same i told them more than 1000 times.
I want permanent solution for this. Please raise a fir on tata sky, i am totaly irritated.