The Fast Breeder Test Reactor (FBTR), the flagship of this centre and Kalpakkam Mini Reactor (KAMINI) are coming under this group.
          Reactor Operation and Maintenance Group consists of Reactor Operation Division (ROD), Reactor Maintenance Division (RMD), Technical Services Division (TSD) and Training & Human Resources Development Division (THRDD).  Quality Assurance and Industrial Safety Section (QA&IS) and Liaison Cell are also coming under this group.
         Operation and maintenance of both FBTR & KAMINI reactors, planning and conducting irradiation programs, reactor physics tests and engineering tests, manpower planning & training for FBTR and PFBR (BHAVINI), maintenance of chemical parameters of the coolants, periodic safety revaluation are carried out by ROMG.