This research delves into the therapeutic potential of Mimosa pudica, known as chuimui or lajwanti in Hindi, for alleviating anxiety and depression, capitalizing on its diverse pharmacological activities. Renowned for analgesic, antidiarrheal, antiinflammatory, hepatoprotective, antiasthmatic, anti-ulcer, and antioxidant properties, the plant emerges as a promising herbal remedy for mental health. The study specifically accentuates its antidepressant and anxiolytic properties, aiming for minimal side effects compared to synthetic alternatives. Pre-formulation considerations involve optimizing the concentration of polymer for in-situ gelation. Preliminary phytochemical screening unveils the presence of bioactive compounds, including terpenoids, flavonoids, glycosides, alkaloids, quinines, phenols, tannins, and saponins, known for modulating neurotransmission and exhibiting anxiolytic effects. The concentration of deacetylated gellan gum for gelation is fine-tuned using simulated nasal fluid, emphasizing minimal viscosity. Compatibility studies using Fourier-transform infrared spectroscopy (FTIR) confirm the absence of significant drug-polymer interactions. Differential scanning calorimetry (DSC) provides insights into thermal behavior. Six trial batches with varying concentrations are prepared, and final formulations are evaluated for different physicochemical parameters. Stability studies are conducted under different conditions for three months. The comprehensive investigation aims to inspire advanced research into the manifold benefits of Mimosa pudica, particularly in mental health treatment, paving the way for potential herbal formulations with reduced side effects.