The antibacterial efficiency of nano TiO2, TiO2/SiO2, TiO2/ZnO and TiO2/SiO2/ZnO Nanocomposites coated on modal fabric using dip coating was evaluated using Fourier infrared spectroscopy, Transmission electron microscopy, scanning electron microscopy and zone of inhibition against Bacillus subttilis. The particle size varies between 17.9 nm to 46.4 nm. The fabric treated with TiO2/SiO2/ZnO exhibited a maximum zone of inhibition of 53 mm followed by 47 mm and 43 mm for TiO2 and TiO2/ZnO treated fabrics respectively.TiO2/SiO2 treated fabric has shown a minimal zone of inhibition of 36 mm.