Soak the tuvar dal and the chana dal in water for about two hours. Drain, and using as little water as possible, grind to a paste along with the other ingredients.
Steam or microwave 1 head of broccoli, separated into small florets, until it is quite tender but not falling apart or mushy.
Heat 1 tbsp oil in a skillet. Add 1 tsp mustard seeds and when they sputter, add 1 tbsp udad dal.
Add the lentil paste to it and stir fry around 10 minutes until the lentils darken in hue and no longer taste raw.
Add the broccoli and mix it in with a few stirs.
Check the salt and remove from the heat. Serve hot.