If u don`t have all the vegetables listed above. You can use any vegetables u have except ladies finger(vendakka) and tomato.
Cut all the vegetables lengthwise of 1/2 inch length.
Put all the vegetables in a pressure cooker.
Add chilli powder, turmeric, water and salt into it and mix well.
Close the lid and cook it in high flame upto 1 whistle and 2 mins in simmer.
Switch off the stove.
Grind together coconut, cumin seeds, onions and curry leaves.
Preheat a tava and put the cooked vegetables along with the ground paste and tamarind water.
Cook for another 2 mins.
Switch off the stove.
:- Do not overcook as it can get dried up quickly.
Add curry leaves and coconut oil and mix well.
Close the lid and let the aroma spread into the curry.
:- Serve hot.
:- You can substitude tamarind with curd or raw mango. While using raw mango u have to cook it with other vegetables.