Post Offices (POs) are classified into 3 types

1. Head Post Office
2. Sub Post Office
3. Branch Post Office

Alagappapuram P.O. is a Sub Post Office. It is located near the Alagappa University Administrative Building (at a distance about 100 meters).
Address: Alagappapuram Post Office, Alagappapuram, Karaikudi-630003.
Phone: (91) 4565 227997