Here's why:
* Caste is a complex and sensitive issue: It's important to understand that caste is a system of social stratification that has historically been used to create hierarchies and discrimination.
* "Biswas" is a common surname: It's not indicative of a specific caste. Many people with the surname "Biswas" belong to different castes and communities in Bengal.
* Focusing on caste can perpetuate stereotypes: Attributing characteristics or assumptions to someone based solely on their surname can reinforce harmful prejudices.
Instead of trying to categorize someone by their surname, let's focus on respecting individuals and understanding their unique experiences.