Today we are going to see an authentic Bengali dish. Yes, you guessed it right it is a fish curry dish recipe. Katla fish is found in a fresh water and mainly consumed in West Bengal (INDIA). Preparation of this recipe is simple and delicious to taste. I have given a little twist by adding drumstick to the curry. Drumstick adds more taste to the curry.We can use Rohu or Mrigal fish as well for this curry. So let's start with the ingredients first.