Healt oil in a pan , add mustard seeds to it. Once it pops and splutter, add cumin seeds and curry leaves.
Add chopped onions, turmeric powder and hing. Saute till onions turns translucent .
Now add in peanuts, sprouts, chopped potatoes and salt and saute well everything.
Add in above ground masala paste , mix well and stir couple of minutes until the masala is evenly cooked and oil starts to release from the corners.
Now add 5-6 cups of water and cook in medium flame. When it begins to boil, simmer and cook until the sprouts and potatoes are cooked totally.
Add tamarind extract, jaggery , adjust salt and simmer for few more minutes for all of the flavours to mix effectively.