For Fish:
500 gBhetki fillet (or basa)
2 tsplime juice
to tasteSalt
½ tsp turmeric powder
3–4 tbspmustard oil (plus extra for drizzling)
2 tbspcurd (thick yoghurt)
4–5slit green chilies
4–5banana leaf pieces
For Mustard Paste
1 tbspblack mustard seeds
2 tbspyellow mustard seeds
1 tbsppoppy seeds (optional)
6–8cashews
2 tbsppumpkin seeds
1 tspfreshly grated ginger
2-3green chilies
as neededWater