Xavier Institute of Social Service (XISS ) is a Jesuit-run business school in Ranchi, India. It was established as an extension department of St. Xavier's College, Ranchi, in 1955 by Fr. Michael A. Windey, S.J. with the objective of training young men and women in Rural Development, Personnel Management and Industrial Relations.In 1963, Fr. Micheal Van Den Bogaert, S.J. was appointed as the director of XISS and rendered his service to the institute for 23 years. In 1973 the institute was registered as a separate educational society under the Societies Registration Act, 1860. In 1978, it moved to its present site.