Carbapenem resistant Acinetobacter baumannii, especially themetallo beta lactamase (MBL) positive ones, are fast coming up the list of pathogenscausing nosocomial infections. Thus it should be a present day concern of all tertiarycare hospital to detect the presence of MBL positive Acinetobacter baumannii.Aims: To determine the presence and extent of MBL positive Acinetobacter baumanniigroup.