Fry purple yam (kand), suran and sweet potatoes on medium flame. also, fry small potato pieces on medium flame. take out fried vegetables into wire rack.
Now separately fry raw banana, stuffed brinjal, stuffed potatoes and green chilli on medium flame till it becomes slightly soft. (refer to video)
Now in a cooker, add ¾ cup oil, mustard seeds, cumin seeds, ajwain and hing. Sauté it.
Then add dry red chilli, cinnamon, bay leaf and cloves. Sauté it.
Now add the half green paste. Sauté it.
Then add surti papadi, valor papadi, tuvar dana, green peas, green chana, green vaal and salt. saute it.
Then add 1 cup water and cook papdi and dana on for 5 minutes till it becomes slightly soft.
then add tomato puree and Cook puree till oil separates from its sides.
Now lower the flame, and add turmeric powder, red chilli powder and coriander powder. Mix well and sauté masala till oil separates from its sides.
Then add some prepared masala on the papdi and dana layer.
Also, coat fried vegetables with masala and spread them on the papdi layer. (Refer to video)
Now spread stuffed brinjals and potatoes on the upper layer.
Add ¾ cup hot water into the pressure cooker.
Then close the lid and pressure cook undhiyu on medium-high flame for 2 whistles.
When the pressure cooker releases its temperature, open the lid and mix well. Do not cook it for more time.
Now add stuffed fried chilli, tamarind pulp, sugar and undhiyu masala. mix well.
Now add muthiya and 4-5 crushed muthiya into the gravy. Also, add 1 cup hot water and cook undhiya on low flame for 5 minutes so muthiya absorbs gravy.
For tadka, in a pan, add oil, sesame seeds and curry leaves. when sesame seeds splutter switch off the gas and adds turmeric powder, hing and red chilli powder. Mix well.
Add tadka into undhiyu and mix well.
Garnish with coriander leaves and serve undhiyu with puri and jalebi.