One form is working while other form is not working in laravel 5.4

I've UserController in which I've two options -

1. For Updating Profile

2. For Updating Password

   namespace App\Http\Controllers;

   use Illuminate\Http\Request; use Illuminate\Support\Facades\Input; use App\User; use Auth; use Hash;

   class UserController extends Controller { public function profile(){ return view('profile', array('user' => Auth::user())); }

   public function update_avatar(Request $request){
       if(isset($request->avatar) && $request->avatar->getClientOriginalName()){
           $ext = $request->avatar->getClientOriginalExtension();
           $file = date('YmdHis').rand(1,99999).'.'.$ext;
           $request->avatar->storeAs('public/avatar',$file);
   
       }
       else
       {
           $user = Auth::user();
           if(!$user->avatar)
               $file = '';
           else
               $file = $user->avatar;
       }
       $user = Auth::user();
           $user->avatar = $file;
           $user->name = $request->name;
           $user->email = $request->email;
           $user->mb_number = $request->mb_number;
           $user->home_town = $request->home_town;
           $user->save();
   
       return view('profile', array('user' => Auth::user()));
   
   }
   
   public function update_password(Request $request){
       $user = Auth::user();
       if(Hash::check(Input::get('old_password'), $user['password']) && Input::get('new_password') == Input::get('confirm_new_password')){
           $user->password = bcrypt(Input::get('new_password'));
           $user->save();
       }
       return view('profile', array('user' => Auth::user()));
   }
   
   

   }

In my view blade, I've two forms -

1. update_avatar for updating profile like name, phone number and avatar.

2. update_password for updating password.

           </div>
           <div class="widget-user-image">
             <img class="img-circle" src="" alt="User Avatar">
   
           </div>
           <div class="box-footer">
             <div class="row">
               <div class="col-sm-4 border-right">
                 <div class="description-block">
                   <h5 class="description-header"></h5>
                   <span class="description-text">Email</span>
                 </div>
                 <!-- /.description-block -->
               </div>
               <!-- /.col -->
               <div class="col-sm-4 border-right">
                 <div class="description-block">
                   <h5 class="description-header"></h5>
                   <span class="description-text"></span>
                 </div>
                 <!-- /.description-block -->
               </div>
               <!-- /.col -->
               <div class="col-sm-4">
                 <div class="description-block">
                   <h5 class="description-header"></h5>
                   <span class="description-text">Phone No.</span>
                 </div>
                 <!-- /.description-block -->
               </div>
               <!-- /.col -->
             </div>
             <!-- /.row -->
           </div>
           <!--
           <div class="box-footer no-padding">
             <ul class="nav nav-stacked">
               <li><a href="#">Projects <span class="pull-right badge bg-blue">31</span></a></li>
               <li><a href="#">Tasks <span class="pull-right badge bg-aqua">5</span></a></li>
               <li><a href="#">Completed Projects <span class="pull-right badge bg-green">12</span></a></li>
               <li><a href="#">Followers <span class="pull-right badge bg-red">842</span></a></li>
             </ul>
           </div>
           -->
         </div>
         </div>
   
             <section class="content">
               <div class="container-fluid">
                   <form action="/profile" enctype="multipart/form-data" method="POST">
                       <div class="form-group">
                           <div class="form-group">
                               <label for="name">Name</label>
                               <input type="text" name="name" class="form-control" id="name" placeholder="Title" value="">
                           </div>
                           <div class="form-group">
                               <label for="email">Email</label>
                               <input type="text" name="email" class="form-control" id="email" placeholder="Description" value="" readonly>
                           </div>
                           <div class="form-group">
                               <label for="mb_number">Mobile No.</label>
                               <input type="text" name="mb_number" class="form-control" id="mb_number" placeholder="Schedule" value="">
                           </div>
                           <div class="form-group">
                               <label for="home_town">Home Town</label>
                               <input type="text" name="home_town" class="form-control" id="home_town" placeholder="Deadline" value="">
                           </div>
                           <div class="form-group">
                               <label>Update Profile Image</label>
                               <input type="file" name="avatar">
                               @if($user->avatar)
                               <img src="" style="width:150px;">
                               @endif
                           </div>
                       <input type="hidden" name="_token" value=""
                       <a href="" type="submit" class="btn btn-info"></a>
                       <button type="submit" class="btn btn-primary">Update</button>
                   </div>
               </div>
   </section>
   
   <section class="content">
               <div class="container-fluid">
                   <form action="/profile" enctype="multipart/form-data" method="POST">
                       <div class="form-group">
                           <div class="form-group">
                               <label for="old_password">Old Password</label>
                               <input type="password" name="old_password" class="form-control" id="old_password" placeholder="Old Password">
                           </div>
                           <div class="form-group">
                               <label for="new_password">New Password</label>
                               <input type="password" name="new_password" class="form-control" id="new_password" placeholder="New Password">
                           </div>
                           <div class="form-group">
                               <label for="confirm_new_password">Confirm New Password </label>
                               <input type="password" name="confirm_new_password" class="form-control" id="confirm_new_password" placeholder="Confirm New Password">
                           </div>
                       <input type="hidden" name="_token" value=""
                       <a href="" type="submit" class="btn btn-info"></a>
                       <button type="submit" class="btn btn-primary">Update Password</button>
                   </div>
               </div>
   </section>
   
   

update_password function is working fine but update_avatar function is not working neither it's showing any error. I've tried dd($user) but still not giving output to dd.

via Chebli Mohamed