Add kadalai maavu (besan flour) to a mixing bowl.
Pour water little by little and mix well to avoid lumps.
Add chopped capsicum, grated carrot, coriander leaves, and curry leaves.
Add omam (ajwain) and salt. Mix everything well.
Adjust water to make a smooth dosa batter consistency not too thick or too thin.
Add cooking soda and gently mix once.
Rest the batter for 15 minutes.
Heat a dosa tawa and lightly grease it with oil.
Pour a ladle of batter and spread gently into a dosa.
Cook on medium flame until the bottom turns golden.
Flip and cook the other side if needed.
Remove and repeat with the remaining batter.
Serve hot with your favorite chutney's