For the dough:

In a bowl put the flour, salt and oil

start adding the water a little at a time and start kneading the dough.

Make into a semi soft dough adding water as necessary until the desired texture

Divide the dough into 10 balls

Set aside

For the filling:

Mix together the onion, salt, curry leaf, pepper and green chilies, add in the mashed potato and drained tuna. Mix thoroughly.

To prepare the roshi

Take a piece of the prepared dough and make a dent.

Stuff with about a tablespoon of the filling and close it to make a round ball

Dust the ball with flour and roll out into a flat bread, use additional flour as necessary

Heat a pan and put in the roshi adding a touch of oil to each side of the roshi.

Cook until lightly browned.

Serve hot