I assume you refer to flour tortillas compared to Chapati/Roti. The reason tortillas are softer is because of the amount of lard or shortening used as well as milk which used. Hot off the grill tortillas are very soft pliable and ready to make tacos/burritos. read more
The Indian Chapati/Roti is made using Whole wheat flour and the dough is prepared by mixing this flour with normal water/oil(at times) at room temperature. However, the Mexican Tortilla flour is made using refined flour (Maida) or even maize/corn flour at times. read more
Best Answer: Roti is made with a whole wheat flour, whereas wheat tortillas are usually made with white flour. The biggest difference is that there is substantially more fat in the dough of a tortilla. Roti uses little or none in the dough. read more