Unable to Verify user in laravel - php

Question

I'm new to laravel, so i started by creating a messaging application. User should be able to send message to each other. So i created migrations, seeds,models and also defined relationships in models. Everything was working fine. I was able to seed perfectly.
So i created a login page, applied validations. But now i'm unable to login.
Here is the route :
Route::group(array('prefix'=>'social'), function(){
Route::get('/', array('as' => 'loginformshow', 'uses' => 'LoginformController#showLogin'));
Route::post('loginform', array('as'=>'loginformdo', 'uses'=>'LoginformController#doLogin'));
Route::get('loggedin', array('as'=>'loggedin', 'uses'=>'LoginformController#loggedin'));
});
Here's the respective method in controller
public function doLogin(){
$rules = array('email'=> 'required|email', 'password'=>'required');
$validator = Validator::make(Input::all(), $rules);
if($validator->fails()){
return Redirect::to('social')->withErrors($validator)->withInput(Input::except('password'));
}else {
$userdata = array('email' => Input::get('email'), 'password' => Input::get('password'));
if(Auth::attempt($userdata)) {
return Redirect::route('loggedin');
}else echo "Invalid User";
}
}
Auth::attempt is returning false every time and so the output is Invalid User.
i used print_r to check the data received in $userdata and it's showing correct credentials.
Here's the User model:
<?php
use Illuminate\Auth\UserInterface;
use Illuminate\Auth\Reminders\RemindableInterface;
class User extends Eloquent implements UserInterface, RemindableInterface {
/**
* The database table used by the model.
*
* #var string
*/
protected $table = 'users';
/**
* The attributes excluded from the model's JSON form.
*
* #var array
*/
protected $hidden = array('password');
/**
* Get the unique identifier for the user.
*
* #return mixed
*/
public function getAuthIdentifier()
{
return $this->getKey();
}
/**
* Get the password for the user.
*
* #return string
*/
public function getAuthPassword()
{
return $this->password;
}
/**
* Get the e-mail address where password reminders are sent.
*
* #return string
*/
public function getReminderEmail()
{
return $this->email;
}
public function conversationsReply(){
return $this->hasMany('ConversationReply', 'user_id', 'id');
}
}