The present invention relates to a process of preparing herbal nanoparticles of solasodine by micro emulsion cross linking technology using gelatin type B, PMMA, toluene and glutaraldehyde. Herbal nanoparticles of solasodine are aimed to deliver solasodine at targeted site of anti breast cancer therapy in chemically induced breast adenocarcinoma at a faster rate than the pure solasodine. Thus herbal nanoparticles of solasodine are effective in the management of breast cancer.