Take a bowl and put maida into it and cornstarch too,
Now add oil and mix it well, now by adding water kneed the flour and make a smooth dough.
Now make two balls out of it and the size should be like a lemon.
Now with the help of rolling pin roll the chapatis, and take the one chapati and put it into the second one.
Now take a pollybag and place it in between and slightly roll it and make it in big size.
Now take a tawa and put it into the tawa and just in 8 to 10 seconds flip it.
Now in 8 to 10 seconds take it into the flat board and and cut the sides as per your shape.
And know the surprise part you have to pull out from between the thinest sheets will come out
Your sheets are ready