Make The Dough:-

In a bowl mix together atta, Ajwain, oil and salt. Add water little by little and mix.
Knead to form a smooth and soft dough. Cover and let the dough rest for 15-20 minutes.

Make The Filling:-

To make the filling, mash the boiled potatoes and transfer to a bowl.
Add chopped onion,salt, chopped green chilli, cumin powder, chat masala, garam masala powder, amchur and red chilli powder.Mix till everything is well combined. The stuffing is now ready.

Make The Paratha:-

Take one of the dough balls and using your rolling pin roll it into a circle. Apply little oil all over the rolled dough.
Place 2-3 tablespoons of stuffing in the center. Don't overfill else it will be difficult to roll.Bring all the edges together and pinch to seal the edges.Flatten the dough ball using your hands.

Now using your rolling pin, roll the dough to a paratha.Transfer the rolled paratha onto the hot tawa.Cook the side for a minute or two and then flip over. Apply oil on the half-cooked side and flip again.

Now apply oil on the other side as well. Press with a spatula and cook the paratha till both sides have golden brown spots on them.Repeat with the remaining dough balls.
Serve aloo paratha hot with butter, pickle,curd and a cup of chai!