Mix together sooji, maida and salt.
Add enough water to make a slightly sticky dough.
Cover and set aside for 30 minutes.
The sooji will absorb the water and the dough will be crumbly and dry.
Sprinkle water and start kneading the dough.
Sprinkle and knead until you get a nice soft non sticky dough.
Divide into 6 equal portions.
Divide each portion into 10 equal portions again.
You will end up with 60 puris.
Heat oil.
Place all the dough balls in a plate and cover with a cloth so that it won't dry.
Take 6 - 7 balls at a time, roll into puris of even thickness and drop into hot oil.
Press with a ladle and you will see it puffing up.
Turn flame to medium low and fry the puris until they are golden and crisp and there is no sizzling in the oil.
Drain oil and transfer to a bowl.
Finish off all the puris. Once cool, place in an airtight jar and use when needed.