In a wide bowl, add in the flour. mashed potatoes, salt, coriander and chillies.
Give everything a nice mix incorporating the potatoes well.
Add water very slowly to make a nice and semi stiff dough.
Let the dough rest for 10-15 minutes or more.
Divide the dough in equal size balls. Each around 1-1.5 inch in diameter.
Dust the dough ball with some flour.
Either with a rolling pin or simply pat using your hand against a rolling board to form a roti (flatbread). (around 3 -4 inch in diameter.)
Heat a tava/griddle/pan. Grease it lightly with ghee/oil.
Once the tava is medium hot, Put the rolled side down on the tava.
Let it cook for 15-20 seconds.
Flip and let it cook on another side for 1 minute.
Now apply ghee/ oil and shallow fry the paratha using ghee/oil on both sides.
Serve it with Yogurt or Farali Kadhi.