Sometimes due to a faulty pressure cooker gasket/ring, extreme cold water or the nature of the dal makes it hard to cook even when you follow cooking instructions. If this occurs, try one of the following hacks: * The amount of water you add for cooking plays a major role in the consistency of the cooked dal. Make sure to follow cooking instructions accurately. Also, if you live in colder climatic conditions, adding hot water accelerates cooking time * Adding a pinch of baking soda helps cook the dal faster * Combining a couple of spoons of split moong dal while cooking any lentil / legume helps other pulses cook evenly