Take all purpose flour, semolina, wheat flour in a bowl.Add salt, soda and mix. Mix a dough with water.Dough should be like chapati dough.
Take a poly bag, keep dough in the poly bag and make a knot, Let it rest for 25 minutes.
After 25 minutes, make small bowl, and roll out dough.
Puri should neither to be thick and nor thin.
Roll out all puri's in similar way and keep all puri's in a plate and place separately.
Put a fry pan/ wok on the gas.
Pour Refined oil in the fry pan.Wait oil to heat.
Oil should be smoky hot.
Drop puri's in the oil and fry, Puri's will pop out.
I am taking 100% guarantee, By this way, all puri's will be pop out and crispy.