Just like any other greens, remove the leaves from the stem. Fill water in a large pot and add the leaves to the pot and give a gentle stir. Let the leaves soak for a minute. The mud will settle down at the bottom of the pot. Gently remove the leaves from the top. Repeat this process 2-3 times until there the water runs clear. Now, you can chop or puree the Bathua leaves and use them in your preferred recipes.