517391 is the PIN Code of Katnagallu, which is located in Chittoor district, Andhra Pradesh state.
Katnagallu Post Office is located at Katnagallu, Chittoor 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 Katnagallu PO is 517391. This Postoffice falls under Chittoor postal division of the Andhra Pradesh postal circle.