In a bowl add finely chopped onion, green chilies, salt, ajwain, besan, and water mix it well

Put iron Tawa on low flame. Add 1 spoon of oil now add this besan chilla batter to the tawa

Cook until it becomes golden Brown Turn it now and cook it from another side also. make it golden brown from both sides

Serve hot with ketchup or mint green chutney.