Hydrogel is a hydrophilic polymer and has the ability to swell on encountering water. The hydrogel can be synthesized from a natural or synthetic polymer, each having merits and demerits. The aim of the present research work is to synthesize biodegradable nontoxic hydrogel from guar gum and sodium alginate that can be tailored to deliver fragrance. The synthesized hydrogel was dried and was further characterized by using Fourier transform infrared spectroscopy [FTIR] analysis, field emission scanning electron microscopy [FESEM], and Ultraviolet-visible (UV-Vis) Spectrophotometer. In order to overcome the existing problem of odor we have incorporated the lavender essential oil as a fragrance emitting in hydrogel synthesized from guar gum and sodium alginate. These essential oils will gradually release their fragrance in a controlled manner through the process of diffusion from the hydrogel. Hence hydrogel plays a very important role in emitting odor into the environment.