# Indian Codes Hub

> The unified developer and agent directory for Indian reference codes: PIN Codes, Bank IFSC Codes, STD Area Codes, RTO Vehicle Registration Codes, Railway Station Codes, Telecom USSD Codes, HTML Colors, Indian Festivals, and Cricket Stadiums.

Official Website: https://codes.techkarmic.com/

## Available Directories

| Directory | Description | Scope / Volume | Format |
|---|---|---|---|
| [PIN Codes](/pin-codes) | Indian Postal PIN codes by city, district, state | 150,000+ post offices | 6 digits (e.g., `110001`) |
| [IFSC Codes](/ifsc-codes) | Bank branch IFSC codes for NEFT, RTGS, IMPS | All Indian scheduled banks | 11 characters (e.g., `SBIN0000001`) |
| [STD Codes](/std-codes) | Area dialing telephone codes for Indian cities | 2,500+ cities & towns | 2 to 4 digits (e.g., `011`, `022`) |
| [RTO Codes](/rto-codes) | Regional Transport Office vehicle registration codes | All States & Union Territories | 2-letter state + 2 digits (e.g., `DL01`, `MH02`) |
| [Railway Codes](/railway-codes) | IRCTC Indian Railway station codes & railway zones | Major stations across India | 2 to 4 letters (e.g., `NDLS`, `CSMT`) |
| [USSD Codes](/ussd-codes) | Telecom service dial codes (Balance, Data, Offers) | Jio, Airtel, Vi, BSNL | Format: `*...#` (e.g., `*199#`) |
| [HTML Colors](/html-colors) | Standard web colors with HEX, RGB, and names | Web palette & curated shades | HEX (`#RRGGBB`), RGB |
| [Festivals](/festivals) | National, cultural, and religious festivals in India | Major calendar observances | Name, Date, Significance |
| [Cricket](/cricket) | Major cricket stadiums in India | International & IPL venues | Name, City, Capacity |

## Machine-Readable Data Endpoints

AI agents and automated tools can fetch raw structured datasets directly:
- PIN Codes: `https://codes.techkarmic.com/data/pin-codes.json`
- IFSC Codes: `https://codes.techkarmic.com/data/ifsc-codes.json`
- STD Codes: `https://codes.techkarmic.com/data/std-codes.json`
- RTO Codes: `https://codes.techkarmic.com/data/rto-codes.json`
- Railway Codes: `https://codes.techkarmic.com/data/railway-stations.json`
- USSD Codes: `https://codes.techkarmic.com/data/ussd-codes.json`
- HTML Colors: `https://codes.techkarmic.com/data/html-colors.json`
- Festivals: `https://codes.techkarmic.com/data/festivals.json`
- Cricket Venues: `https://codes.techkarmic.com/data/cricket.json`

## Agent Content Negotiation

This site supports HTTP content negotiation:
- Send `Accept: text/markdown` to retrieve clean Markdown versions of any route.
- Send `Accept: text/html` (or standard browser requests) for the interactive React web application.
- Direct Markdown representations are also accessible by appending `.md` or `/index.md`.