Nano-biosensors are advanced devices that integrate nanotechnology with biological sensing elements to detect specific biological, chemical, or physical changes. These sensors have significant applications across various fields, including healthcare, environmental monitoring, and food safety. Nanotechnology Nanotechnology is the manipulation of matter on a near-atomic scale to produce new structures, materials and devices. The technology promises scientific advancement in many sectors such as medicine, agriculture, consumer products, energy, materials and manufacturing. Nanofertilizer is nanometer scale materials which is in the form of nanoparticles, containing macro and micronutrients that are delivered to crops in a controlled mode. Nanotechnology applications in agriculture appear to be a promising approach, fostering the transformation of conventional production systems into upgraded agricultural practices with a clear emphasis on the development of more efficient and environmentally friendly methodologies. Nanofertilizers could be a crucial development in the protection of the environment because they can be applied in smaller quantities compared to traditional fertilizers, hence reducing leaching, runoff, and gas emissions to the atmosphere. We have already developed nanomaterials based Nanofertilizer as micro and macro nutrient delivery agent. Our Research team has been conducted different comprehensive analysis of the potential benefit of Nanofertilizer over conventional fertilizer in term of agronomic and physiological properties, growing rates, nutritional value of different crops such as Paddy, Tomato, Strawberry, Lettus, brinjal, Capsicum.