Soak rice (brown/white) for 3 hours in a vessel. Soak tur dal and chana dal in another vessel for 3 hours. Drain the water and grind the rice first by adding little water. Grind it to a very smooth paste. It should not be coarse.
Empty it into a mixing bowl. Grind the drained lentils along with asafoetida, salt and dried red chillies. Grind this coarsely. Transfer this to the mixing bowl. Add chopped onions, chopped curry leaves, blanched and chopped kale and adjust the salt as required. Give the batter a good mix. Heat a skillet and pour a spoonful of batter and shape it like a pancake. Drizzle ghee around it and cook the adai on medium flame till it turns light and golden. Flip and cook the other side the same way. Kale Adai or Kale & Lentil Savory Pancakes are ready.