Heat oil in a pan, add chopped onion and garlic. Fry them until soft.Then add garlic paste, ginger paste, cumin paste, salt, red chili powder and turmeric powder. Saute' for 1 minute, reduce the heat to medium. Dry fish has a lot of salt. So be careful about salt.Now add boiled shutki and stir for 1-2 minutes.If you feel salty then add more onion.It is your personal preference.Use mustard oil  which makes the shutki to different taste and makes it so delicious.