HDFC Bank — Harassments call from collection department

I have HDFC personal loan account no 4095691 which has been over due. However due to financial crisis and COVID situation I have take settlement and making part payments towards it.
However your collection department are calling my relatives. I have informed them already not to call any of my relatives still they are calling and hiding their identity and calling with different names.
They have only right to call me or my parents or reference no which I have given to them and not to anyone else. Still they are calling.
Below are 2 numbers who are calling my relatives
[protected]
[protected]
Name they mentioned on call is Mahesh, Rupali and Pradnya.

Pls stop this on immediate basis otherwise I will file a police complaint against them. Because as per RBI guidelines bank can't call any random relative and ask them for payment.