Nowadays thermal engineers are facing most difficult challenges to amplify the heat transfer through lower rates to higher rates. Over the decades, various heat transfer augmentation techniques are suggested by pioneers. Among the heat transfer augmentation techniques, passive techniques are attractive due to the absence of auxiliary power sources, self sustainability, and high reliability. In this review paper major focus is taken on distinctive kind of tube inserts (Twisted tape, Wire coil, Helical tape… etc.) are applied to induce turbulence through swish motion, secondary pass, and vortices, resulting in an elevated heat transfer coefficient at the tube wall. Twisted tape inserts significantly refine heat transfer. Helical twist tape produces an elevated heat transfer rate due to vigorous swirling flow and protracted residence time in the tube. Wire coil inserts are the best choice among all the inserts for maximum heat transfer inflation with minimum friction penalty. Recently, the researchers are focusing upon the combination of the different non-active techniques applied simultaneously to enhance the accomplishment of the cooling systems even more. Such chronological progress of the inflation methods are summarized in the present study. This comprehensive review paper is gathering of recent research papers on augmentation of heat transfer employing passive techniques, and combined technologies (Tube inserts, nanofluids, phase change materials, porous media, and combination of these techniques) which are useful to designers for implementation in the same field. Author suggested zig-zag strip insert, semi-circular/curved strips insert, and combination of these two type of tube inserts from the passive heat transfer techniques.