In India, out of the 6.73 million hectares of land affected by salinity,Gujarat alone constitutes 2.23 million hectares. Gujarat contributes significantly to India’s groundnut production, accounting for 40.5% of the total output, where Junagadh district is the leading producer. The Saurashtra region in Gujarat is particularly affected by soil salinity. Considering the unique and beneficial impacts of both zinc oxide nanoparticles ZnO NPs and a plant hormone melatonin (Mt) on plant growth, ZnO NPs were functionalized with Mt (ZnOMt NPs). This novel agent has the potential to promote plant growth and protect against salinity stress, thereby holding promising applications in sustainable agriculture. Seed priming using ZnOMt NPs will lead to faster and more uniform germination, enhanced seedling vigor, reduced rof seedling mortality, extended sowing window, make stress tolerant and and Increase in yield potential, resulting in economic benefits for farmers.