In a pressure cooker or a vessel, add all the vegetable ingredients, salt, curry leaves, pour 1/2 cup coconut milk and cook the vegetables. If in a pressure cooker, just 1 or 2 whistles are required. The coconut milk will curdle and thats alright.

Once cooked, add the remaining 1 cup coconut milk.

Mash some of the potato so that the gravy gets thicker.

Warm it again. Make sure you remove from the stove much before it reaches boiling point.

Check for salt.