Crush sabudana and moraiyo together. Place in a bowl.

For the dry potato filling, heat oil in a pan. Add cumin seeds and curry leaves.

Add boiled potatoes, green chili, coriander, turmeric, salt, and lemon juice. Mix and cook for 2 minutes.

Heat a dosa pan. Pour a ladle of batter and spread like a dosa.

Cook on low heat until set and golden.

Spread the potato filling over the dosa. Fold and serve hot.