PayU seccssUrl not work

[bmiit145]

I have tried a payU gateway in laravel as It's not redirected to mentioned success url after payment in test mode and not about live

as I also mention my code for that

'payumoney' => [ // PayUMoney Parameters
'merchantKey' => env('PAYU_MERCHANT_KEY', ''),
'salt' => env('PAYU_MERCHANT_SALT', ''),
'workingKey' => env('PAYU_WORKING_KEY', ''),

    'redirectUrl' => url('indipay/response'),
    'successUrl' => env('PAYU_SUCCESS_URL',  url('indipay/response')),
    'failureUrl' => env('PAYU_FAILURE_URL', url('indipay/cancel')),
    'cancelUrl' => env('PAYU_CANCEL_URL', url('indipay/cancel')),

    'currency' => 'INR',
    'language' => 'EN',
],

and 

public function process(Request $request)
{
    $userData = $request->session()->get('user_data_temp');

    $request->session()->put('ccavenue_user_data', $userData);

    $reg_id = $request->reg_id;

    try {
        $course_rate = $request->course_rate;
        $numeric_course_rate = floatval(preg_replace('/[^0-9.]/', '', $course_rate));

        $orderId = uniqid();
        $tId = uniqid();
        $email = $userData['email'];

        // Create transaction table entry
        $transaction = new Transaction;
        $transaction->order_id = $orderId;
        $transaction->tid = $tId;
        $transaction->email = $email;
        $transaction->save();

        $parameters = [
            'key' => env('PAYU_MERCHANT_KEY'),
            'txnid' => $tId,
            'amount' => $numeric_course_rate,
            'productinfo' => 'Course for traders',
            'firstname' => $userData['full_name'],
            'email' => $email,
            'phone' => $userData['phone'],
            'surl' => route('payment.response'),
            'furl' => route('payment.cancel'),
            'service_provider' => 'payu_paisa',
            'udf1' => '', // Optional user-defined fields
            'udf2' => '',
            'udf3' => '',
            'udf4' => '',
            'udf5' => '',
            'service_provider' => 'payu_paisa'
        ];

        // Create the hash string according to the provided formula
        $hashString = implode('|', array_map('trim', [
            $parameters['key'],
            $parameters['txnid'],
            $parameters['amount'],
            $parameters['productinfo'],
            $parameters['firstname'],
            $parameters['email'],
            $parameters['udf1'],
            $parameters['udf2'],
            $parameters['udf3'],
            $parameters['udf4'],
            $parameters['udf5'],
            '','','','','',
            env('PAYU_MERCHANT_SALT')
        ]));

        // Generate the hash
        // $parameters['hash'] = strtolower(hash('sha512', $hashString));

       
        $order = Indipay::gateway('PayUMoney')->prepare($parameters);
    //    dd($order);

        return Indipay::process($order);

    }catch(IndipayParametersMissingException $e){
        \Log::error('Missing Parameter Error:', ['exception' => $e]);
        return response()->json(['error' => 'Missing Parameter Please try again. ' . $e->getMessage()], 400);
    }
    catch (\Exception $e) {
        \Log::error('Payment Processing Error:', ['exception' => $e]);
        return response()->json(['error' => 'An error occurred while processing the payment. Please try again. ' . $e->getMessage()], 500);
    }
}