The Agrzhan were a group of Muslim merchants from India who operated in Astrakhan. In 1857 they numbered 107. Since then they have assimilated into the Astrakhan Tatar population.
Sources
Wixman, Ronald. The Peoples of the USSR: An Ethnographic Handbook. (Armonk, New York: M. E. Sharpe, Inc, 1984) p. 6