Soak tamarind for half an hour.
Extract the juice out of it and keep aside.
Pressure cook dal for 3 to 4 whistles. Keep it aside.
In a mixer grinder add coconut, coriander seeds and red chillis.
Make a smooth paste of it. Keep it aside.
In a pressure cooker add chow chow pieces, salt and turmeric powder.
Pressure cook them for 3 whistles.
Once it cooled open the lid and add tamarind juice,
Mix it and let it cook for a while.
Then add the above made paste and toor dal.
Mix it well and allow it to cook for 5 to 10 minutes.
Heat 1 tbsp oil in another pan and mustard seeds, cumin seeds, red chillis and curry leaves.
Add asafoetida and let them splutter.
Add the tadka to the kootu and let it cook for another 5 to 10 minutes.
Serve chow chow kootu with rice or idli, as you wish.