Bharti Airtel — Getting late night calls from a number even after the number is blocked.

Address: Mumbai City, Maharashtra

I contacted a person (number is - [protected] )around 20th June 2015 when I and my friend were searching for flats. Got his number from one of the online sites. He said the flat is unavailable and I said ok. After that he called at around 11:30 PM again. I picked up the call and told him not to call again or else I will complain in Police. Still he called. I called 100 from the other number keeping him on call. I talked to a police officer and he said to file an FIR. This man disconnected the call and I thought we will not call any further. Still to be on safer side, I blocked his number on TrueCaller. After few days, he was still trying to contact me but since his number was blocked he couldn't. After almost a month of this incident, I noticed that in TrueCaller I had 100's of notifications about this person trying to call me. He calls like 20-30 times in a span of 10-15 mins. He tried calling late night or early morning also (2-3 am/4-5am). I was shocked seeing this. I was busy with some important work that time and I ignored it. After so many days, yesterday (20th August 2015) around 10:30 PM, he again started calling me although I blocked his number. So, I forwarded the call to my Brother. Every time my brother picked up his call, he disconnected but this didn't stop him from calling. I again blocked him. Today (21st August 2015 4:07 PM), he is again trying to call me. Please help in punishing this person. Don't know how many girls are bothered because of him. Thanks.