Combine plain flour, whole wheat flour, 1¼ tsp of oil and salt in a deep bowl and knead into a soft dough using enough water.

Cover the dough with a wet muslin cloth and keep aside for 10 minutes.

Knead again using remaining oil for 1 minute.
Divide the dough into 4 equal portions.

Roll out each into thin circle.

Heat a tava and cook each roti lightly on both side on a medium flame for 1 minute and keep aside.

For stuffing
Heat the oil in a deep non-stick pan, add the ginger-garlic paste and sauté on a medium flame.

Add the potatoes, chilli powder, garam masala, chaat masala, coriander and salt, mix well and sauté on a medium flame for 2 minutes.Saute chopped Carrots.Add Boiled Sweet corns,Paneer,Sautéed Carrots and tomatoes Keep aside.

Place a roti on the tava (griddle) and cook on a medium flame using ½ tsp butter for 1 minute or till both sides turn light brown in colour. Keep aside.

Heat ½ tsp butter on a tava (griddle), place ¼th of the stuffing and cook on a medium flame for 1 minute.

Place the roti on a clean, dry surface, place the stuffing on one end of the roti, top with ¼ cup of onions, sprinkle 1½ tsp of masala water and ¼ tsp of chaat masala evenly over it.

Roll it up tightly.Place into heated griller.Grill according to your taste.Serve immediately.