Sieve both the flours.
Add red chili powder, turmeric powder , sugar and salt .
Mix well and add citric acid solution and oil . Mix well .
Now adding water bind the dough like paratha dough . The dough will be sticky so you can grease your hands.
Now dissolve 1/4 tsp cooking soda with 1 tsp water and add to the binded dough .
Reknead the dough .
Grease the dough .
Cover and keep aside for 10-15 minutes .
Pinch out a ball from the dough , sprinkle some water and knead the dough again till it becomes soft and smooth. The dough should resemble the roti dough .
Now using a star mesh place it over the hot oil , rub in the dough over it .
Remove the mesh and fry the Tum Tum . Remember the flame has to be low while you are using the mesh .
Increase to medium after removing the mesh .
In case you do not have the big mesh , use the sev press machine with a Star mesh and proceed in the similar manner .