bharatvalidator 1.0.2

🇮🇳 India-first Flutter form validation package with 30+ validators. Covers Aadhaar, PAN, GST, IFSC, UPI, Driving License, Passport, Voter ID etc.

🇮🇳 BharatValidator

India-first Flutter form validation package with 30+ validators.

Validate Aadhaar, PAN, GST, IFSC, UPI, Driving License, Passport, Voter ID, CIN, TAN, FSSAI, ABHA, EPF, Card (Luhn), RERA, Udyam and more — with English, Hindi & Gujarati error messages.

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✨ Features

🪪 Identity

Validator	Description
aadhaar	12-digit Aadhaar (starts 2–9)
pan	PAN card (ABCDE1234F format)
passport	Indian passport number
voterId	Voter ID / EPIC number
drivingLicense	Indian driving license number

🏢 Tax & Business

Validator	Description
gst	15-char GST number
tan	TAN number (PDES03028F format)
cin	Company Identification Number
fssai	FSSAI license number (14 digits)
udyam	Udyam / MSME registration number
rera	RERA registration number

🏦 Banking & Finance

Validator	Description
ifsc	Bank IFSC code
upi	UPI ID (name@handle)
bankAccount	Bank account number (9–18 digits)
cardNumber	Credit/Debit card number (Luhn algorithm)
micr	MICR code (9 digits)
epf	EPF / PF account number
amount	Indian currency amount with optional min/max (₹)

📞 Contact

Validator	Description
phone	10-digit mobile (+91 supported)
email	Email address
landline	Indian landline with STD code

🏥 Health

Validator	Description
abha	ABHA / Ayushman Bharat Health Account number

📍 Address & Vehicle

Validator	Description
pincode	6-digit Indian pincode
vehicle	Indian vehicle number (GJ01AB1234)

👤 Personal

Validator	Description
name	Name (supports Devanagari & Gujarati script)
password	Strong password (8+ chars, upper, lower, digit, symbol)
username	Username (3–20 chars, letters/digits/_/-)
dob	Date of birth with optional min/max age

🌐 Digital

Validator	Description
url	Website URL (http/https)
otp	OTP — 4 or 6 digit

Multi-language error messages: English 🇬🇧 · Hindi 🇮🇳 · Gujarati 🟠

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🚀 Installation

dependencies:
  bharatvalidator: ^1.0.0

flutter pub get

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📖 Usage

Basic

import 'package:bharatvalidator/bharatvalidator.dart';

final v = BharatValidator(); // English (default)

TextFormField(
  validator: v.aadhaar, // Pass directly!
)

Change Language

// Hindi
final v = BharatValidator(locale: BharatLocale.hindi);

// Gujarati
final v = BharatValidator(locale: BharatLocale.gujarati);

Validators with Parameters

// DOB with minimum age check
TextFormField(
  validator: (val) => v.dob(val, minAge: 18),
)

// Amount with min/max range
TextFormField(
  validator: (val) => v.amount(val, min: 1, max: 100000),
)

// OTP length
TextFormField(
  validator: (val) => v.otp(val, length: 6),
)

Full Form Example

final v = BharatValidator(locale: BharatLocale.hindi);

Form(
  key: _formKey,
  child: Column(
    children: [
      // Personal
      TextFormField(validator: v.name,          decoration: InputDecoration(labelText: 'Name')),
      TextFormField(validator: v.username,       decoration: InputDecoration(labelText: 'Username')),
      TextFormField(validator: v.phone,          decoration: InputDecoration(labelText: 'Mobile')),
      TextFormField(validator: v.email,          decoration: InputDecoration(labelText: 'Email')),
      TextFormField(validator: v.password,       decoration: InputDecoration(labelText: 'Password')),
      TextFormField(validator: (v) => v.dob(v, minAge: 18), decoration: InputDecoration(labelText: 'DOB')),

      // Government IDs
      TextFormField(validator: v.aadhaar,        decoration: InputDecoration(labelText: 'Aadhaar')),
      TextFormField(validator: v.pan,            decoration: InputDecoration(labelText: 'PAN')),
      TextFormField(validator: v.voterId,        decoration: InputDecoration(labelText: 'Voter ID')),
      TextFormField(validator: v.passport,       decoration: InputDecoration(labelText: 'Passport')),
      TextFormField(validator: v.drivingLicense, decoration: InputDecoration(labelText: 'Driving License')),

      // Tax & Business
      TextFormField(validator: v.gst,            decoration: InputDecoration(labelText: 'GST')),
      TextFormField(validator: v.tan,            decoration: InputDecoration(labelText: 'TAN')),
      TextFormField(validator: v.cin,            decoration: InputDecoration(labelText: 'CIN')),
      TextFormField(validator: v.fssai,          decoration: InputDecoration(labelText: 'FSSAI')),
      TextFormField(validator: v.udyam,          decoration: InputDecoration(labelText: 'Udyam')),

      // Banking
      TextFormField(validator: v.ifsc,           decoration: InputDecoration(labelText: 'IFSC')),
      TextFormField(validator: v.upi,            decoration: InputDecoration(labelText: 'UPI ID')),
      TextFormField(validator: v.bankAccount,    decoration: InputDecoration(labelText: 'Account No.')),
      TextFormField(validator: v.cardNumber,     decoration: InputDecoration(labelText: 'Card Number')),

      ElevatedButton(
        onPressed: () => _formKey.currentState!.validate(),
        child: Text('Submit'),
      ),
    ],
  ),
)

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🌐 Supported Languages

BharatLocale.english   // "Enter a valid 12-digit Aadhaar number."
BharatLocale.hindi     // "मान्य 12 अंकों का आधार नंबर दर्ज करें।"
BharatLocale.gujarati  // "માન્ય 12 અંકનો આધાર નંબર દાખલ કરો."

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🏗️ Project Structure

bharatvalidator/
├── lib/
│   ├── bharatvalidator.dart              # Main export
│   └── src/
│       ├── bharat_validator.dart         # Main BharatValidator class
│       ├── locale/
│       │   └── bharat_locale.dart        # Multi-language messages
│       └── validators/
│           ├── aadhaar_validator.dart
│           ├── pan_validator.dart
│           ├── gst_validator.dart
│           ├── tan_validator.dart
│           ├── cin_validator.dart
│           ├── ifsc_validator.dart
│           ├── upi_validator.dart
│           ├── pincode_validator.dart
│           ├── phone_validator.dart
│           ├── landline_validator.dart
│           ├── email_validator.dart
│           ├── vehicle_validator.dart
│           ├── passport_validator.dart
│           ├── voter_id_validator.dart
│           ├── driving_license_validator.dart
│           ├── bank_account_validator.dart
│           ├── card_number_validator.dart
│           ├── micr_validator.dart
│           ├── epf_validator.dart
│           ├── fssai_validator.dart
│           ├── abha_validator.dart
│           ├── rera_validator.dart
│           ├── udyam_validator.dart
│           ├── name_validator.dart
│           ├── password_validator.dart
│           ├── username_validator.dart
│           ├── dob_validator.dart
│           ├── amount_validator.dart
│           ├── url_validator.dart
│           └── otp_validator.dart
├── example/                              # Full demo app
└── test/                                 # Unit tests

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🧪 Running Tests

flutter test

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📄 License

MIT License © 2026 — Made with ❤️ for Indian Flutter developers.