BHUBANESWAR: The tiger prawns, crabs and fishes of Chilika are not just delicious but among the safest in India sans toxicity, a monitoring study by Central Inland Fisheries Research Institute (CIFRI) has revealed.

Since fish is at the top of the food chain, they are prone to bio-accumulation and toxic substances like heavy metals, pesticides and insecticide residues are found.

However, a