Clean crab, marinate with turmeric powder, chilli powder and salt and add 1cup of water boil for 5 min and keep,

Crush onion, tomato and half of curry leaves and keep

Grind all the dry whole ingredients, coriander leaves as paste

Rub the tapioca and wash throughly. Remove the skin and cut into big cubes

In a broad pan, heat oil, add ground paste and crushed masala, coriander powder, fry until the raw smell goes.

Add crab, tamarind paste, cook for 5 min and add 1cup of water

Cover and cook in medium flame until thick. Now Add green chilli, some curry leaves, sugar and butter cover and keep for 10 min

Now the spicy, healthy and yummy crab curry is ready to serve