In a mixing bowl, add 2 cup besan. Add water gradually and make medium thick batter and ribbon like pouring consistency of batter. (refer video)
Now whisk batter for 5 minutes so it become light and fluffy.
Now add ½ tsp turmeric powder, 1 tsp red chilli powder, salt to taste, pinch of hing, 1 tsp ajwain, 1 cup chopped onion, 3-4 chopped green chilli and ½ cup coriander leaves. Mix well.
Now add Add 1 tbsp hot oil and mix well.
Batter is ready. Batter consistency should be medium thick and pouring.
Heat the oil in a pan on medium heat for deep frying.
Once oil is hot enough Drop small balls in it using your hand or with help of two spoons.
Fry bhajiya on medium flame. Remove them on wire rack
Repeat the same frying for rest.
Besan bhajiya is ready serve with chutney and cup of hot tea.