Simple Route to an action in another controller

i have an MVC .Net C# project. have Plan Action under Home Controller. but i dont want to access this page as http://....../Home/Plans but i want to access it as http://....../Plans but i dont want to create Plans Controller. so i dont want to do a redirectToAction.

i am trying to use the Route Annonation as the following:

[Route("plans/")]
public ActionResult Plans()

[Route("plans/{actions}")]
public ActionResult Plans()

[Route("plans/index")]
public ActionResult Plans()

but none of the above worked for me. can you guys help me in this.