Clean and wash crab thoroughly and cut into pieces.

Marinate crab with a pinch of turmeric powder and salt for 30 minutes.

Boil 1 litre of water and add crab. Cook for 3-5 minutes, then drain and set aside.

Heat sunflower oil in a wok or kadhai.

Add ginger garlic paste and sauté until the raw smell disappears.

Add chopped shallots, green chilies, and dry red chilies. Sauté until onions are translucent.

Add chopped tomatoes and cook until mushy and oil separates from the sides.

Add coriander powder, turmeric powder, red chilli powder, fennel powder, and black pepper powder. Mix quickly.

Add salt to taste and mix well.

Add the cooked crab to the pan and mix to coat evenly with the spice masala.

Reduce the flame to low, cover, and cook until crab is fully cooked and the masala turns dry.

Remove from pan, garnish with coriander leaves, and serve hot with steamed rice.