how to clear text field after submit data into database

public ActionResult Index()

 { 

return View(); 

} 

 [HttpPost] 

public ActionResult Index(Person p)

 { 

if (ModelState.IsValid) { 

// This will clear whatever form items have been populated

 ModelState.Clear(); // Here I'm just returning the view I dont want a model being passed 

return View();

 } // Here I'm returning the model as there's an error and the user needs to see // what has been entered. 

return View(p);

 }