IS SAMAJDAR surname is bengali bramin?

Oh, dude, you're asking if "Samajdar" is a Bengali Brahmin surname? Well, technically, "Samajdar" is a common surname in India, especially among Bengali communities, and some Bengali Brahmins do use it. But hey, surnames can be pretty fluid, so it's not like there's a strict rulebook for this stuff. Like, you could be a Samajdar and still not know where your great-great-grandpa was from, you know?