I didn't soak the beans before cooking. I pressure cooked it directly. After the first whistle reduced the flame to low-medium and cooked for 6-7 whistles. Kept closed till pressure drops. I didn't add the stock of cooked beans to the curry. However, in some recipes, they add it to the curry, and it gives a reddish tint to Olan. The curry tends to thicken as it rests.