Wash and roughly chop the prawns
Mix these with the crab meat, cooked potato, curry leaves, garam masala, chopped chilli, coriander leaves, Kashmiri chilli and turmeric powder, lemon juice and salt.
Wet your hands and form the mixture into 12 equal sized patties or tikki. If the mixture feels too wet you can add more cooked potato or some toasted gram flour.
Place the gram flour onto a plate and sprinkle in a teaspoon of chilli flakes. Dust each one with the flour.
Once the grill is hot place the cakes into the grill and cook through for 3 minutes, reduce the heat if required, then turn over and cook the other side. They should be crisp on the outside