Abstract. From the SEP events of cycle 23 we considered the events having ≥1 particle in 50 MeV range at the time of peak flux and computed their energy spectrum in the energy range of 30-100 MeV. Interplanetary Scintillation data from the Ooty Radio Telescope observations have been used to get the radial evolution of the CMEs in the inner heliosphere. We have compared the CMEs with the particle profile radial evolution.