This is the type of fish - Sutchi fillet we used (from cold storage/Shop & Save):
Next, thawed the fish. Cut into smaller pieces and blanch in boiling water till cooked. Drain on a rack.
Tranfer the cooked fish to a tray lined with baking paper.
Bake for 45 mins at 200 degree C w/fan on or bake till both sides are golden brown.