Pre-heat the air fryer at 400°F for 5 minutes.
Take a blender and add the onions, ginger, garlic, red chili powder, coriander powder, turmeric powder, and salt. Blend it into a smooth paste. The paste has to be thick in consistency so that you can put it on the fish. If the paste is too thick, add a little bit of water.
Take the fishes on a plate and add the marinade and properly apply on the fishes.
Next, spray the air fryer basket with oil. Next, put the marinated fish inside.
Air fry the fish at 350°F for 15-20 minutes or until they are properly cooked.
For the green chutney, blend all the ingredients together. Add water to adjust the consistency of the chutney.
For the onion salad, mix all the ingredients together.
Serve the air fried fish hot with green chutney and spicy onion salad. Serve it as a side dish with steamed rice.