Instant India PIN Code & Post Office Finder
Search 157,126+ post offices, calculate Speed Post delivery tariffs, and format courier addresses with zero wait time.
Speed Post Rate Calculator
Calculate exact India Post parcel & letter tariffs with 18% GST, weight slabs, and estimated delivery days.
Courier Address Formatter
Format messy customer addresses into standard barcode-ready shipping labels for BlueDart, Delhivery & India Post.
PIN-to-PIN Distance Tool
Estimate aerial distance, road transit distance, and delivery transit timelines between any two PIN codes in India.
Browse PIN Codes by State & Union Territory
Explore post offices, taluks, and delivery circles across all 36 administrative regions of India.
How Indian Postal Index Numbers (PIN) Work
Introduced on 15 August 1972 by Shriram Bhikaji Velankar, the 6-digit PIN code system standardizes mail sorting across India into 9 postal zones.
Postal Guides & Knowledge Hub
Expert articles on postal code architecture, Speed Post consignment tracking, and packaging standards.
How Indian PIN Codes Work
Complete breakdown of the 6-digit postal system, 9 geographical zones, and sorting district mapping across India.
Read Guide → ⚡Speed Post Tracking Guide
Learn how to track 13-digit consignment barcodes online and via SMS commands to 51969 without internet.
Read Guide → 📊Speed Post Rate Chart 2026
Official tariff schedule by weight slabs up to 35 kg, distance slabs, delivery transit norms, and calculated 18% GST.
View Matrix →Frequently Asked Questions
Everything you need to know about Indian postal codes, post office types, and delivery rules.
What is the full form of PIN in PIN code? ▼
PIN stands for Postal Index Number. It is a 6-digit code introduced by India Post on 15th August 1972 to eliminate confusion caused by duplicate city names and different languages across India.
What is the difference between HO, SO, and BO in India Post? ▼
Head Office (HO): The primary administrative and financial nodal post office for a district/postal division.
Sub Office (SO): Located in urban or semi-urban areas under the jurisdiction of a Head Office, providing full postal services including Speed Post, savings accounts, and parcels.
Branch Office (BO): Located primarily in rural areas providing basic postal banking, registered letters, and delivery services.
How is Speed Post rate calculated? ▼
Speed Post charges depend on the weight of the parcel and the distance between origin and destination PIN codes (Local, up to 200 km, 201–1,000 km, 1,001–2,000 km, or above 2,000 km). An 18% GST is applicable on all domestic Speed Post services. You can use our interactive Speed Post Rate Calculator to calculate the exact postage.