Bring a pot of water to boil and add the soya chunks. Boil for 5 minutes. Turn off the heat and drain after 10 minutes. Rinse the soya chunks in water 2-3 times and squeeze out the water.
In a mixie jar add all the ingredients to grind along with ¼ cup water and grind to a paste.
Heat a heavy bottomed pressure cooker and add oil. Add mustard seeds and when it splutters, add asafoetida, curry leaves and onion.
Saute the onion till soft. Add the ground masala and fry in medium-low heat for 8-10 minutes or until raw smell goes.
Add 1 cup water, soya chunks, salt and mix well. Close the lid and pressure cook for 1 whistle in low heat.
Once pressure subsides, open the lid and add chopped coriander leaves. Add more water if the kurma is too thick.
Notes
Adjust the spice level according to your preference.
You can also cook this in a kadai or deep bottomed vessel. After adding soya chunks, cover and cook for about 8-10 minutes in low heat.