Collection of selected, peer reviewed papers from the International Conference on Nanomaterials: Science, Technology and Applications (ICNM’13), December 5-7, 2013, Chennai, India. The 54 papers are grouped as follows: I. Nano Materials: Synthesis and Characterisation, II Electrical, Magnetic, Optical Properties of Nanomaterials, III. Polymers and Nanocomposites, IV. Bio Nanomaterials and their Applications, V. Nanomaterials: Energy & Environment, VI. Nanomaterials: Theoretical and Computational Studies