In a large bowl mix all the ingredients mentioned in the above list and keep it in a refrigerator for an hour or overnight which would be better.
Puri
Combine rice flour, wheat flour, all purpose flour and salt. Add water little at a time and mix. Knead slowly to form a semi stiff dough. Divide the dough in equal parts.
On a floured surface roll the dough in a thin circle with a rolling pin.
With a cutter, cut out circles in the dough. Remove the extra dough and add it to the unused dough.
Gently slide 3 to 4 puris into the hot oil in a frying pan and fry till golden brown (10-20 seconds a side) on both sides.
Drain on absorbent paper.
Repeat with the remaining dough.
Assembly
Lightly tap the top of puri with tip of spoon or index finger to make a small hole.