Hello @kartik
In eloquent ORM, $fillable attribute is an array containing all those fields of table which can be filled using mass-assignment.
Mass assignment refers to sending an array to the model to directly create a new record in Database.
Code Source
class User extends Model {
protected $fillable = ['name', 'email', 'mobile'];
// All fields inside $fillable array can be mass-assigned
}
Thank You!!