The dish is originally meant to be made with the Red Mullet or Barbounia.
I used a fish of the mullet family that I found in Versova market (Boi is what the fisherwoman Sarita said it was called)
To approximate the flavour of fresh lemon juice, I used a mix of lime and orange juice that I feel works well. If you are lucky enough to get hold of beautiful plump lemons like those from the mediterranean, please do use those.