521403 is the PIN Code of Erramadu, which is located in Krishna district, Andhra Pradesh state.
Erramadu Post Office is located at Erramadu, Krishna of ANDHRA PRADESH state. It is a Branch Post Office. A Post Office (PO) / Dak Ghar is a facility in charge of sorting, processing, and delivering mail to recipients. POs are usually regulated and funded by the Government of India (GOI). Pin code of Erramadu PO is 521403. This Postoffice falls under Vijayawada postal division of the Andhra Pradesh postal circle.