Soak the tamarind in a cup of warm water for 15 minutes and squeeze the juice out of it, if using the tamarind concentrate dilute it with 1/2 a cup water.
Rinse the lentils till the water runs clear
Add the lentils to the instant pot.
To the lentils add 1 tsp of turmeric, 1 tsp of cumin seeds, 1/4 tsp Asafoetida ( skip for whole 30) and 1 tsp oil
Add 4 cups of water
Place the wire rack which comes with the instant pot over the lentils and water. ( Ref to video for steps)
In a small steel or pyrex mixing bowl add all the shallots/onion, tomatoes, chopped vegetables of choice
Add the tamarind juice or the watered down tamarind water to the vegetables.
Add the spices - turmeric, chilli powder, coriander powder, salt.
Place the mixing bowl with vegetables on the rack which was placed in the instant pot steel insert.
Cover the bowl with a steel plate or an oven safe lid.
Close the instant pot lid and make sure to close the pressure vent. Select the pressure cook option and set the timer for 15 minutes.
Open the lid after the natural pressure release.
Take out the bowl of vegetables and the rack. Add the vegetables and the spices into the lentils . And add a cup of water to adjust the consistency if needed.
Set the Instant pot on sauté mode and let it come to boil.