Seive the tuna and drain off the water or oil.
Heat oil in a pan.
Add onion and fry, until it becomes light brown.
Add chilly powder, coriander powder, turmeric powder and salt.
:- Add very little salt since the canned tuna is already salty.
Mix well and fry for a few mins, till the spicy smell comes out.
Add green chillies and sliced tomato.
Mix well and fry for a few mins.
Add tuna and stir well.
Keep it on the flame again for a few mins.
:- Serve with rice, chappathis and wraps.