Biomass briquettes were developed as an alternative to fossil fuels using Gloriosa Superba wastes-Turmeric leaves (GSW-TL) with cassava starch binder to ensure energy security and address environmental issues. GSW-TL was mixed in various ratios ranging from 0 to 100% (w/w) with a 10% increment. As a binder, 10% (w/w) cassava starch was used. For the production of the briquettes, a compressed hydraulic system with a 90 s dwell period and a 200 kN compaction pressure was employed. The produced biomass briquettes were measured for their diameter, height, mass, volume, density, density ratio, relaxed density, relaxation ratio, texture, colour, and shattered index. Using EDAX/SEM, the presence of macro elements, micro elements, and the morphology of the produced biomass briquettes were investigated. The mass loss, heating values, exothermic peak, and endothermic peak of biomass briquettes were determined using thermal analysis (TGA/DSC). The development of biomass briquettes was found to have higher compression strength and calorific value than other biomass briquette samples reported in the literature (Comparison analysis). The current study validated the feasibility of producing biomass briquettes from GSW-TL with cassava starch as a binder.Graphical Abstract: