Boil the potato in cooker. Once it is done. Cool it. Take out the lid. Transfer the boil potato in cold water. Peel the potato and mashed it. keep aside. Soak soya chunks in Lukewarm water till half an hour. Once it is done. Squeeze the soya chunks and transfer to a bowl. Blend the soya chunks with green chilli, garlic, salt,oil. Once it is done. Transfer to a bowl. Add mashed potatoes. Add all the dry masala. Mix well. There will be no lumps on it. Knead a smooth dough.