How to fry tortillas for poori?
It's a late answer, but I do this all the time when I'm feeling lazy and don't want to make traditional roti. Heat up oil to 300 to 350 in a skillet .about 2 inches of oil. Or use your deep fryer at 350, just make sure it's large enough. The most important  thing is your oil needs to be up to temperature.  As soon as you toss in the tortilla it should automatically  pop and bubble up .count to 15 seconds and flip for 10 more seconds....let it drain on paper towels in a large bowl and cover with a kitchen towel to let the steam seep back in to keep it soft and moist....if it's crunchy it's because  your oil wasn't hot enough or it just sat too long frying...the while frying  process shouldn't exceed 25 seconds. 
By the way I used the burrito tortilla flour type. Burritos  are bigger.