after postback my page shows different url

I have a form for inserting data. After postback of the form it shows different url for the form, but the page is same. I think the problem is created due to return view('pages.booksin'); but I do not how to solve the problem.

controller code::

public function create()
    {
        //
        return view('pages.booksin');
    }

public function store(Request $request)
    {
        try{
            $validatedInput = $request -> validate([
                'sel_bookID' => 'required',
                'NBilledDate' => 'required',  
                'NBilledNumber' => 'required',
                'NBilledQuantity' => 'required',
                'NBilledPrice' => 'required'
            ]);

            $ordered_books = new OrderedBook;
            $ordered_books -> BookID = $request->input('sel_bookID');
            $ordered_books -> BilledNum = $request->input('NBilledNumber');
            $ordered_books -> BilledDate = $request->input('NBilledDate');
            $ordered_books -> Qunatity = $request->input('NBilledQuantity');
            $ordered_books -> Price = $request->input('NBilledPrice');
            $ordered_books -> Remarks = $request->input('NBilledRemarks');    
            if($ordered_books->save())
            {
                Session::flash('alert-success', 'orderd successfully inserted');
            }    
            return view('pages.booksin');
        }
        catch (\Exception $e) {
            Session::flash('alert-danger', $e->getMessage());
            return view('pages.booksin');
        }
    }

Initially, I open the page booksin.blade.php via , http://127.0.0.1:8000/order/create but after post back the shown url is http://127.0.0.1:8000/order. How should I solve this problem? Thank You!!!

via Chebli Mohamed