Airtel — Receiving calls from unknown number

Respected Sir.

As we lived in family, one airtel number is constantly annoying to my family as well as to my personal mobile number. Now, the stage is that it is very problematic for my family members (father, mother and sister). Even when i am at class the person is calling me. The number is active every week. So, it is my humble request to give the full details of the airtel mobile number. The mobile number is [protected].Even the call is coming at mid-night also.

So, pl give me full details to my mail id (shankar.[protected]@gmail.com).Treat, this is as my final step to stop the unwanted calls.
Treat this matter on urgent basis as the question is of my family safety.