Soak all dals for 60 mins.
Mash all the potatoes and heat 1 tbsp oil in a pan and let cumin seeds crackle.
Add chopped onions and 1 tsp ginger garlic paste and saute. Next add mashed potatoes and salt along with pav bhaji masala and cook well .
In the end add chopped coriander and 1 tbsp lemon juice and put of the flame and let this cool.
Make a paste of all dals with ginger , garlic paste, green chilli, jaggery, aamchur, salt, cumin powder and keep aside.
Now make very small balls of potatoes , these should be have diameter of 1.5 cm and heat your appe pan.
Now brush some oil in the grooves of appe pan and add 1 tbsp of dal batter and then dip one ball each in the grooves. Remember the ball should sink in a little bit and then take some more batter and cover it up.
This will give you idea how big/small your potato ball should be. The batter should full cover the ball. Now cover the appe pan and let it cook till its crispy and then you can turn it around.
Sprinkle some oil to cook it uniform and once its done from all sides you can serve it with any dip or chutney or even dahi.