Solution:Brihaddharma Purana from the thirteenth century allowed the local Brahmanas to consume selected types of fish.
There are numerous references to fish in Bengali literature since fishing has always been a significant occupation. Additionally, clay plaques that decorate the walls of temples and viharas show scenes of fish being dressed and carried to market in baskets. The Bengali Brahmanas were given an exception to the Brahmanical authorities' ban on eating non-vegetarian cuisine because fish was so common in the region's diet. Certain types of fish were acceptable to the local Brahmins according to the Brihaddharma Purana, a Bengali Sanskrit treatise from the thirteenth century.