Peel, Wash and chop potatoes in rounds. Soak in water for 10 minutes and then pat dry. Add corn flour, salt and red chilli powder and mix well.

In a mixing bowl add Gram flour and make a thick batter by adding water slowly. Add salt, turmeric, red chilli powder, garam masala and carrom seeds and mix. Add grated garlic and chopped coriander leaves and mix.

Now heat oil in a wok. Arrange potato slices in a circle one by one. As shown in pic below. Cover it with a lid. Cook for 2 minutes on low flame.

Now remove the lid and spread gram flour batter over it and again place the lid and cook for 5 minutes on low flame.

Now remove lid and sprinkle some cooking oil on it. Place a thali over it and move the griddle upside down on plate. The chilla will come on plate.

Gently remove it on griddle so that gram four side will be down. Cook on low flame till crispie golden brown colour.

Remove it in a serving plate and serve hot with sauce or chutney.