Blend the water along with oil till it mixes well. Then add the lemon juice, 2.5 tbsp of the spice mix, baking soda and blend again for the liquid to froth.
Take the besan in a bowl, and add this frothy liquid slowly to form a soft dough.
Grease your hands with oil and grease the sev mold well. Fill with dough.
Heat oil in a Kadai and when oil, directly press down over the oil.
When the sev comes up, reduce the flame to low and keep cooking from low to medium until the sev is cooked.
Drain using a slotted ladle over to a kitchen towel. Allow to cool down and store in an airtight box.