[en] Insertion devices (undulators) have been successfully commissioned in Indus-2, at Raja Ramanna Centre for Advanced Technology (RRCAT) Indore. Three insertion devices (IDs) in which two are planar undulators (U1, U2) and one is APPLE-2 type undulator (U3), have been successfully installed in the Indus-2. Control system is designed and developed for remote operation of undulators from main control room and beam lines. This paper highlights design features of undulator control system (UCS) and implementation of software scheme for changeover of operation control of undulators. Control system for undulator is divided in different layers and distributed across physical lengths. Software design is modular and utilizes Ethernet which further helps in distributed monitoring and interrupt free changeover of operation control based on Indus-2 machine state. The control system facilitates safe operation of Indus-2 with undulators at all the stages of machine operation like beam injection permission, beam injection, energy ramping and beam usage at 2.5GeV. (author)