Heat oil in a pan and temper with mustard seeds, cumin seeds and asafoetida. After they stops spluttering, add 1 chopped onion and curry leaves. Saute till light brown.
Add ginger-garlic paste and saute for a few seconds. Then add the tomato puree and turmeric powder. Continue to fry on low flame till the oil separates.
Add the spice powder and mix well. Then add the sprouts and salt. Stir for a minute. Add 2 1/2 cups water and pressure cook for 3-4 whistles.
While serving, in a bowl add the prepared misal and top it up with the farsan/sev, chopped onion, tomatoes and coriander leaves.