  The 2.34m Vainu Bappu Telescope (VBT) is a reflecting telescope that operates
in two modes, prime focus and cassegrain focus, and is equipped with two
instruments. In prime focus mode, the telescope has the F-number of f/3.25, and
the High-Resolution Echelle Spectrograph (HRES) is employed through optical
fiber. On the other hand, in cassegrain focus mode, the F-number is f/13, and
the OMR Spectrograph (OMRS) is mounted for low and medium-resolution
spectroscopy. Currently, the VBT faces a limitation: either the OMRS or the
HRES can be used due to the switch in the heavy secondary mirror. To overcome
this, we present a novel method enabling the OMRS to operate from prime mode
alongside the HRES. The fiber setup for OMRS is optimized with a 25-lenslet +
fiber-based Integral Field Unit (IFU) capable of observing both point and
extended sources. The optimized lenslet, fiber, and fore optics design is
undergoing lab testing. Our approach allows seamless operation of both
spectrographs on the same night, enhancing the observational capabilities of
astronomical studies with VBT.
