Wash the lentils 2-3 times under a running stream of water and soak for 2-3 hours.
Drain and discard the water in which you soaked the lentils.Add the soaked lentils to a pressure cooker, add cumin, bay leaf, cloves and black cardamom along with salt and 1/2 cup water.
Close the lid of the pressure cooker and place it on stove. Let the stove be on high till the first whistle. After that, reduce the stove to low medium and cook for additional 2-3 whistles. After total 3-4 whistles, switch off the stove and let the pressure release naturally.
Open the lid, do not mix at once while the lentils are hot, they will turn into a mush. Take 1-2 lentil grains and press between your thumb and finger, if the grain is pressed easily and dosent feel hard, the lentils are cooked. If not, add 2-3 tbsp water and cook for one more whistle.
The lentils should not disintegrate, they shoud be cooked through but retain their shape after boiling. Pick out and discard the bay leaf, clove and cardamom, Cover the cooker and let the lentils cool down for a bit, dont let them become cold. We want to make the mix while the lentils are still warm.