In a large mixing bowl, combine dry ingredients like all purpose flour, dry fenugreek leaves, cumin seeds, carom seeds, black pepper powder, asafetida, baking soda and salt as required
Add water to the dry mixture and knead into a soft dough. Cover and keep aside for 30 minutes
Heat oil for frying in a deep pan. Pinch small balls from the dough and roll them lightly in your palms to even them out
Prick each mathri using a fork and fry them in medium hot oil till crisp and golden