Soak vanpayar in water for 3 - 4 hours.
Cook it in a pressure cooker upto 4 - 5 whistles.
:- If not soaked, then you need to cook for more than 5 whistles.
Add chena, turmeric powder, chilly powder and salt and cook upto 1 whistle.
Grind together coconut, 1 shallot and cumin seeds to a fine paste.
Add the above paste into the chena mixture.
Heat oil in a pan.
Splutter mustard seeds.
Add red chillies, black gram and curry leaves.
Add the above seasoning into the chena mixture.
:- Will be more tasty if coconut oil is used for seasoning.