Airtel — recycled sim

Address:

57-B New Rehari, New Rehari, Jammu, Jammu and Kashmir, 180005

I bought a airtel sim a month ago.
I am getting calls from different unknown numbers all the times. I can see that the unknown numbers are genuine callers. Therefore i have come to conclusion that i have received an recycled number of a girl.
I called the airtel customer care after only few days only and they told me to give the numbers from which i have been getting calls to police.
So according to this theory i have to go to police station regularly as i get atleast 2-3 calls from different numbers from maharashtra gujarat etc which i think are genuine.
Once i ta led a caller they say they were looking for a girl named tina and i have also heard same name from different callers