Heat a wide cooking vessel with tamarind juice and jaggery. Bring it to boil for about 5 minutes. Next add 3 cups of water and continue cooking.
Add chopped vegetables, turmeric powder and salt to this tamarind juice. Let the veggies cook till soft and pulpy. When the vegetables are done, include bisi bele bath powder and combine well.
Next add cooked pigeon pea lentils and broken wheat. Let broken wheat absorb all the spices and the mixture turn little thick. Then switch it off.
Finally heat a seasoning pan and add mustard seeds, split black gram lentils and curry leaves. As the mustard seeds sizzle, include cashews and saute for while. Transfer the seasoning to bisi bele bath.
Serve this hot broken wheat bisi bele bath along with potato chips or kara boondi.