Knead whole wheat flour with water and salt into a smooth dough.
Boil, peel, and mash potatoes; mix with finely chopped green chili, cumin powder, garam masala, salt, and coriander leaves.
Roll a portion of dough, place potato filling in center, enclose, and roll flat again.
Cook on a hot griddle, applying ghee on both sides until golden brown spots appear.