Thank you @LeonidS , for your support. I solved this issue by the following steps.

added this code to the Page->Code section

array (

 'module' => 'vnd_team',

 'method' => 'form_add',

Created one service function in module class file

function serviceFormAdd(){

        $oForm = BxDolForm::getObjectInstance('team_form_objects', 'team_form_objects_add'); // get form instance for specified form object and display

        if (!$oForm)

            die('"team_form_objects_add" form object or "team_form_objects_add" display is not defined');

        $oForm->initChecker(); // init form checker witout any data - adding new record

        if ($oForm->isSubmittedAndValid()) {

            $oForm->insert ();

        }

        return $oForm->getCode(); // display form

    }