In a mixing bowl, combine whole wheat flour, salt, and oil. Gradually add water and knead into a smooth dough. Cover with a damp cloth and let it rest for 15 minutes.
Prepare the Filling
Mash the boiled potatoes until smooth. Mix in cumin seeds, garam masala, red chili powder, turmeric, amchur, salt, cilantro, and green chili. Stir well to evenly distribute the spices.
Shape the Paratha
Divide the dough into equal portions and roll them into balls. Flatten one ball and roll it out into a small disc. Place a generous amount of filling in the center, then fold the edges over and seal it like a dumpling.
Roll it Out
Lightly flour your surface and roll the stuffed dough ball into a thin, even circle, about 6-7 inches in diameter. Be gentle to prevent tearing.
Cook the Paratha
Heat a tava or skillet over medium-high heat. Place the rolled-out paratha on the hot pan and cook for 1-2 minutes until bubbles form. Flip, spread a little ghee or butter, and cook until golden brown spots appear. Repeat on the other side.
Serve Hot
Transfer the paratha to a plate and top with extra butter if desired. Serve with yogurt, pickle, or chai for a complete desi food experience.