The agricultural sector faces great challenges, nutrient deficiencies, environmental change, and a vast range of biotic and abiotic stresses as a result of climate change. As a result of this, traditional farming practices, which depend more on synthetic agrochemicals for plant protection, are becoming less effective, resulting in undesirable outputs to the crops and the environment. Nanobiofertilisers have emerged as an effective solution for improving agricultural sustainability. Nanotechnology, particularly through the development of nanomaterials, offers new approaches for enhancing agricultural production practices and farming systems. Nanotechnology, especially through development of nanomaterials, offers new approaches to augment farming practices in agriculture. Nanofertilisers and nanopesticides are developed to reduce the usage of conventional plant protection chemicals, reduce nutrient waste, and increase crop yields. These nanomaterials are designed to be target specific, reducing the risk of harming nontarget plants and the release of contaminants into the environment and hence, benefiting eco-friendly agriculture. Another alternative is the use of biofertilisers which is gaining momentum as one of the sustainable agricultural practices. These live microorganisms enhance soil fertility by directly expanding the root surface area, making access to nutrients easier and transport within the plant, promoting growth and plant disease suppression. However, the easy and commonplace use of biofertilisers is impacted by the irregular supply and other methods for their quality control. Integrating nanotechnology with biofertilisers can be considered to be an advanced cutting-edge in agriculture. Bionanofertilisers, which include green synthesis, nanocoating, or encapsulation of beneficial microbes, increase the efficiency of nutrient utilisation for crops and reduce wastage of nutrients. To be able to introduce and market bionanofertilisers, the usage of nanofertilisers for sustainable agricultural practices requires a wide range of field testing, campaigns for sensitisation, training, and adherence to standardised methods of production.