Prepare radish: Wash and peel the radish. Grate it finely. Add salt to the grated radish and mix well. Let it rest for 10 to 15 minutes to release water.
Prepare dough: In a plate, take 1 to 1.5 bowls of wheat flour. Add salt and half a teaspoon of powdered celery seeds. Add 1 teaspoon oil. Knead into a soft, spongy dough. Cover and let it rest.
Drain radish water: After resting, squeeze out all the water from the grated radish using your palms. The more water removed, the less likely the parathas will tear.
Prepare radish filling: To the squeezed radish, add finely chopped green chillies, coriander leaves, half a teaspoon celery powder, half a teaspoon red chilli powder, and 1/4 teaspoon turmeric powder. Mix well. No additional salt is needed.
Roll dough and assemble: Divide dough into balls. Roll out one ball into a large round shape. Spread an even thin layer of radish filling on it. Roll out a second dough ball into the same size and place it over the first with filling. Press gently.
Cut and roll layers: Cut the layered dough into long strips using a pizza cutter. Roll each strip tightly from one end to form a coil like a spring roll. Press the coil with your palm and dust with dry flour.
Final rolling: Roll out the coiled dough gently into a round paratha shape, ensuring multiple layers.
Cook paratha: Heat a pan and roast the paratha on both sides using butter or desi ghee until crispy and golden brown. Flip carefully to avoid tearing.