Take a frypan and fry the marinated fish and stop the flame. Keep them aside. Take another frypan, put some oil and heat it on stove. Put chopped onions and Green chillies with salt as required and fry it for 2 minutes. Now, put ginger and garlic paste into it and fry. Put termeric powder, red chilli powder, Coriander powder with halk cup water and stir fry for 5-7 minutes.