Clean and wash the fishes properly and then marinate the fish with little salt and turmeric powder and keep it aside.
Cut the potato with slices wash it and keep it aside.
Then we will make the Masala paste,for that take the blender add the mustard seeds,cumin seeds,dry red chili,Garlic cloves add little water and make a fine paste and keep it aside.
Heat oil in to a pan, once oil is hot then fry the marinated Pohala fishes Very carefully with medium flame till golden fry and keep it aside.
Fry the Potato sliceses into the same pan for few minutes and keep it aside.
Now in the same pan we will prepare the Curry.
In the Same pan add little oil(2-3 tbsp),once oil is hot then add the panch phuran and let it crackle then add the chopped onion and saute it for few minutes.
Then add the Mustard paste and mix it nicely,then add the chopped tomato,turmeric powder,salt mix it nicely and cook it with medium flame for 6-7 minutes.
Then add the fried potatoes into the masala and mix it nicely for 2 minutes.Then add 1 or 2 glass of water mix it and let it cook for few minutes cover with lid.
Once the Gravy start boiling then add the fried Pohala Fishes and let it cook cover with lid in low flame.
Once the Potato cook Properly and the gravy will be little bit thick then turn off the gas and garnish with coriander leaves.
Now your Pohala Fish Curry is ready to eat,serve hot with white steam rice and enjoy.