Barwa surname is an Indian last name. Barwa surname also indicates the caste of person. Barwa surname definition is Synonym for Garpagari. One who wards off hailstones from the standing crops. Subcaste of Jogi.. People with Barwa surname can also be found in other south asian countries like Pakistan, Bangladesh, Nepal and Sri Lanka. Barwa 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.