isValidKuralNumber function
Implementation
String isValidKuralNumber({required int? kuralNumber}) {
if (kuralNumber == null) {
return 'Kural number should not be null.';
}
if (kuralNumber == 0 || kuralNumber > 1331) {
return 'Kural number should be between 1 - 1330.';
}
return '';
}