The ovipositional responses of Chilo partellus (SWINHOE) were found to be influenced by the larval infestation on the maize plants. Larval feeding and damage to the maize plants increased their suitability for oviposition by C. partellus. Such an increase in the ovipositional suitability of a plant was in respect of both the distance-perceivable as well as contact-perceivable characteristics.The factors responsible for such an increase in the insect's ovipositional preference for the infested plants became more effective with an increase in the number of larvae per plant as well as in increase in the period for which they feed on the plants. The larval feeding and damage to the leaves alone or to the stems alone was able to enhance the ovipositional responses of C. partellus on the infested plants.