In a bowl sieve besan, urad dal flour, salt, baking soda. Mix well
Add oil in a flour and mix well.
Using water knead a stiff dough.
Cover and rest dough for 20 minutes.
Take a plastic sheet, apply some oil on it. place a dough on it and make it smooth with rolling pin or pestle for 8-10 min till it becomes pliable and color turns little lighter. You can alternative knead it with your hands.
Starch the dough and make a log from it. cut it into equal parts.
Take a lemon size ball and using rice flour roll it thinner than chapati.
Dry chapatti for 5-10 minutes.
Meanwhile in a bowl, add red chilli powder and black salt. Mix well. Masala is ready.
After 10 minutes cut chapati into long strips.
Heat oil for frying and Fry chorafali for high-medium flame till it turns light pink in color. It takes about 1-2 min only.
Remove on plate and Sprinkle generous amount of prepared masala immediately.