Wash ash gourd and chop it.
Some crush them in mortar and pestle and some grate them, it is our choice.
I prefer to chop them only.
Tie them in a cloth and place it in a colander.
Place a heavy weight to squeeze excess water.
Do the above process 10 hours before making vadiyalu or a night before.
Soak urad dal for 8 hours. Grind it to a fine paste.
Do not add water to grinding, add only if necessary to make grinder move smoothly.
1 tbsp at a time.
The batter should be as thick or even more as that of vada batter.
Grind green chillies, and salt make a coarse paste.
Mix the gourd pieces, urad dal batter and green chillies paste together.
Mix them well with hands. Do this process just before placing vadiyalu.
Spread a plastic sheet or a cloth under the Sun.
Place very little amount of batter to make vadiyalu with help of a spoon or hand.
Allow them dry completely for two days.
After the first day drying flip them to dry faster and complete.