Atmospheric aerosols act as key elements of cloud microphysics, hydrological cycle and climate by serving as cloud condensation nuclei (CCN). The present work analyses simultaneous measurements of number concentration of CCN (NCCN) and condensation nuclei (NCN) obtained at Nainital, in the Gangetic-Himalayan (GH) region, during the frameworks of Ganges Valley Aerosol Experiment (GVAX), June, 2011 to March, 2012.