Kalyanpur is a Branch Post Office (B.O.) located in the Masaurhi block of the Patna district in Bihar, India. The delivery status of this post office is available. It is part of the Patna division of the Patna HQ. The pincode of Kalyanpur is 804453.

PIN codes, also known as postal codes, help streamline mail delivery in India. Let's break down the different parts of Kalyanpur's PIN code, 804453:

• (80): This identifies the postal circle, which is a region group of states. In this case, "80" represents the Bihar postal circle.
• (804) : These digits represent the sorting district. Here, "804" points to the Patna district within Bihar. Mail for this area is sorted here before final delivery.
• (453) : These pinpoint the specific delivery office within the sorting district. For Kalyanpur, "453" corresponds to the Kalyanpur Branch Office.