Soak the tamrind in 1/3 cup of water for 15-20 minutes.
Chop all the vegetables to bite sized pieces and set aside
Chop the onions and tomatoes, extract the tamrind juice and prepare the rest of the ingredients required for the bisi bele bath.
In the same pressure cooker, add some oil and let it heat.
Add the mustard, cumin, pepper corns, fenugreek and red chilies to the oil and let it crackle.
Add the curry leaves, onions, green chilies and cook till onions turn pink.
Add the tomatoes along with a pinch of salt and cook till it turns soft and mushy.
Add all the vegetables and mix them well along with the onion tomato mixture.
Add the sambar powder, turmeric powder, salt and the tamrind juice to the veggies. Mix them well.
Add some water and let the vegetables cook for 4-5 minutes on a medium flame
Add the rice and dal to the pressure cooker and mix them well. Let it cook till almost 80% of the water is absorbed.
Meanwhile, prepare the ingredients required for tempering.
In a tadka pan, add the oil and fry the whole garam masala (bay leaves, cloves, cinnamon, marathi moggu) along with hing.
Add the fried whole garam masala to the pressure cooker and mix well.
When almost 80% of water is absorbed, switch off the stove and add the garam masala powder and the idli/tiffin sambar powder to the cooker along with the tempered whole garam masala. In a tadka pan, add the ghee and fry the cashews till golden brown.
Add the fried cashews to the pressure cooker and mix well.
Finally add some coriander leaves.
Serve it hot along with fried pappads and raita on the side. Swirl in some ghee just before serving.