Athbhaiya surname is an Indian last name. Athbhaiya surname also indicates the caste of person. Athbhaiya surname definition is (Eight brothers.) A subdivision of Saraswat Brahman in Hoshangabad. An Athbhaiya cannot take a wife from the Chaubhaiya subdivision to whom the former give their daughters in marriage.. People with Athbhaiya surname can also be found in other south asian countries like Pakistan, Bangladesh, Nepal and Sri Lanka. Athbhaiya surname definition is from a survey conducted during British rule in India. Many surnames in India indicate the type of work done by the person or by someone in family from whom the family inherited the surname. Surnames help spread casteism in India. One of the intellectuals suggested to drop surnames in India so that people can overcome caste differences easily.