Chapati and Roti are Indian flatbreads - unleavened and cooked on a grill. The main difference between the two is that Roti is brushed with oil before cooking. It's basically exactly like a flour tortillas, though Indians usually use atta, 100% whole wheat flour, and there's no baking powder.
Chapati/Roti Indian Bread Recipe
1/2 c. whole wheat flour
1 c. white flour
1/4 t. salt
1 T. oil
1/2 c. water + T or so
Mix the dry ingredients and the oil. Add water and knead with your hands until the dough is smooth and just a a little sticky. Knead for 5 minutes. Let the dough rest for 5-10 minutes.