Do they serve Biryani on Sunday afternoon, i have heard they don't serve biryani from the menu if they have a buffet. So do they serve a buffet for sunday lunch.

Yes you are right, they dont have à la carte while they are serving buffet but phone order is available and they are really nice, I equally love thier service and food.

They aim to please. Just call ahead.

I think they have buffet on Sundays. You can't place an order in advance for whatever reason

Call and place the order

If you call ahead and place an order, they'll have it ready, irrespective of whether it's on the buffet.