Square planar transition metal bis(dithiolene) complexes are of upsurge interest throughout the last few decades due to its varied interesting physical as well as physicochemical properties. Random studies on design and synthesis of semiconducting materials based on metal dithiolene complexes are going on. Moreover, shift at intense Near Infrared (NIR) region, high electrical conductivity, non-linear optical (NLO) activity, electrochemical behaviors etc. are some of its interesting activities. It is important to note that a minute tailoring in its ligand backbone (which results change in its electron delocalization) results in appreciable amount of variation in its physicochemical behavior. In this present endeavor, research works on synthesis, solid-state electrical conductivity and Near Infrared (NIR) absorption studies of square planar transition metal dithiolene complexes from near past to present days have been discussed with survey of recent work and its futuristic applications so far.