In a mixing bowl, add chickpea flour/besan, rice flour, green garlic, onion, green chilies and yogurt/dahi. Mix well.
Now add turmeric, chili powder, cumin powder, hing and salt.
Gradually add water and mix it to make a lump free, thin batter, add little more water if needed.
Heat a nonstick griddle and apply a little oil. Spread a big ladle full of batter on the hot griddle to make a large chilla. Cook the bottom part until golden brown on medium flame.
Spread a small spoon of oil on top and carefully flip it upside down. Roast until the chilla is crisp and golden brown.
Remove the chilla from the griddle.
Use the same method to make more chillas with the remaining batter.
Serve the hot chilla with chutneys or tea and enjoy!