SrTiO3 (STO),and La1-xSrxMnO3 (LSMO) (x=0.17,0.33) thin films were epitaxially grown on (001),(110) and (100) NdGaO3 (NGO) substrates by pulsed laser deposition.Owing to relaxation of anisotropic misfit stress,crosshatch surface morphology were observed in STO/NGO systems.The crosshatch patterns exhibit characteristic surface undulation with ridge-like lines parallel to special crystallographic directions of the underlying NGO substrates.