How can i distinguisthis surname is kayastha or st?

Surname classification can vary depending on cultural and regional differences, so it's best to consult specific sources or communities associated with the surname to determine if it is Kayastha or not. Some common indicators of Kayastha surnames include historical records, family lineage, and community associations. Researching the surname's origins and historical significance within the Kayastha community can also provide insights into its classification.