Various baffle types are used for guiding the shell-side flow and supporting the tube bundle. Single segmental baffles are preferred from the higher heat transfer rate point of view, whereas double and triple segmental baffles are used because of relatively lower shell-side pressure drop. Though disc and doughnut (D&D) baffles offer better thermohydraulic performance than double and triple segmental baffles, the conventional disc baffles do not provide effective support for tubes passing through them. In addition to this, unsymmetrical tube-hole cutting may also give rise to sharp edges that could damage the tubes. A modified D&D baffle configuration was arrived at which was then treated using an experimental test loop. An improved thermal performance was observed when the data was compared with the conventional methods reported in literature. The improved baffle configuration also provides better tube support which helps in eliminating the flow induced vibration related problems.