In a bowl mix together corn flour, maida, baking powder and salt.
Add enough water to make a slightly thin batter.
Heat oil in a pan.
Dip washed and dried mushrooms in the batter and drop into hot oil.
Fry until golden.
Drain oil and transfer to a plate.
Heat oil for sauce in a pan and add finely chopped onions, garlic and green chillies.
When the onions turn translucent, add the sauces and salt.
Mix well and then add the fried mushrooms.
Keep on stirring until all the sauce coats the mushrooms and the mixture becomes dry.
Garnish with coriander leaves or green onions and serve hot.
