India Post — confidential information delivered to someone else address.

Address: Bardhaman, West Bengal, 713203

My atm card has been delivered to someone else address in my area. How careless is this, such a height of irresponsibility.. We are not new to this area, residing since 25yrs and inspite of the house no# is mentioned on our gate in a metal plate.
I request the concerned authority to look into this matter and see this kind of mistakes does not get repeated to anyone.