In West Bengal, there are many people who follow Vaishnavism, and they are often referred to as "Baishnabs". However, it is important to note that Vaishnavism is not a caste, and there are many different castes that follow Vaishnavism.
Some of the castes that are commonly associated with Vaishnavism in West Bengal include the Brahmins, Kayasthas, Vaidyas, and Sudras. However, it is important to note that there are many other castes that also follow Vaishnavism, and that not all members of these castes are Vaishnavas.
Vaishnavism is a very important part of the religious landscape of West Bengal, and it has played a significant role in the state's history and culture.