为什么COD没有在结帐页面显示

I have enable the COD payment option from admin and when I checked this on checkout page it is not showing. There is another payment option which payu it is also enabled and it is working fine. PFB Screenshot for the same

enter image description hereenter image description here

Is there I have to change anything in code so that COD option should be available? Please guide me on this, thanks in advance.

My issue ended up being that my products were all set to not require shipping. Obviously if the cash is going to be received on delivery the product has to actually be delivered