Rapid industrialization and development have markedly enhanced environmental degradation, particularly chromium (Cr) has gained a lot of attention in the recent past. This may be due to its indispensable use in large-scale industries including leather tanning, paper production, paints and varnishes etc. Amongst various species, Cr(III) and Cr(VI) are the most stable ones and Cr(VI) is the most toxic. Cr is a non-essential element for plants, yet it is taken up easily through transport carriers of sulphate and phosphates due to their structural resemblances. Trivalent Cr is taken up passively, whereas hexavalent form is absorbed actively through energy expenditure. Besides, morphological, and physiological effects, Cr have a significant impact on the biochemical and molecular aspects of plant systems as well. This includes oxidative damage at cellular and sub-cellular levels. To minimize the toxic effects of Cr, a lot of efforts and mechanisms have been developed, but an efficient, eco-friendly and cost-effective technology is still lagging. In this regard, efforts have been put forward to develop solutions applying emerging technologies and one such technique includes the fabrication of nanoparticles (NPs) to ameliorate the toxicity imposed by Cr in plants. Nanoparticles refer to a material possessing a diameter of less than 100 nm and are synthesized from their bulk material via various top-down and bottom-up approaches. These NPs possess new characteristics in all aspects including physical, electronic, magnetic or chemical as compared to the larger dimension materials. A critical concentration of NPs is vital to act as a stress signalling molecule which modifies the expression of genes linked with a stressed environment. This could be explained in terms of up-regulation in the output of regulatory mechanisms linked with plant defence systems conferring protection from stressed conditions. This review delves into the tackling of Cr-induced toxicity in plants with the application of NPs as they possess the ability to delimit the uptake, translocation and accumulation of heavy metals in the plants as well as plant-soil interface. Moreover, NPs are highly effective in reducing the oxidative stress in plants experiencing various abiotic stresses including heavy metals either by scavenging reactive oxygen species (ROS) or up-regulating the antioxidant defence mechanism. Thereby, fostering environmentally friendly, cost-effective and highly efficient techniques to reduce Cr toxicity in plants adding to sustainable agricultural development.