Setting Stereo Rendering Mode in Unity/Oculus

I am trying to set the Stereo Rendering Mode to Single Pass for Oculus through Script. The value never gets changed, i.e., it stays the same as "Multi-Pass". Is there a way to set up Stereo Rendering Mode through script during runtime? Thing is if I set it manually to Single-Pass and run the application in Editor, it works fine but then when I stop the run, the settings automatically changes to Multi-Pass.

Code (CSharp):

1.  
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5. using UnityEngine.XR;
6.  
7. public class SteoreoRendering : MonoBehaviour
8. {
9.     XRSettings.StereoRenderingMode stereoRenderingMode;
10.     // Start is called before the first frame update
11.     void Start()
12.     {
13.        
14.     }
15.  
16.     // Update is called once per frame
17.     void Update()
18.     {
19.         stereoRenderingMode = XRSettings.StereoRenderingMode.SinglePass;
20.         Debug.Log(stereoRenderingMode);
21.     }
22. }