and in Nepal . There are Kayastha in Bihar - Sinha, Lala, Srivastava, Verma and others; in Bengal viz. Sur , Bose , Ghosh , Mitra , Dutta , Guha , in Orissa , viz. Patnaik , in Assam viz. Chaliha , Barua and in Maharashtra viz. Thackeray and Samarth .