The present century demands transformative competencies in all spheres of human life and this necessitated the evolution of a new civil right in the modern era. Inevitably, this demands for new sets of skills and competencies in the learners to meet the challenges and competitions of the knowledge economy, labor market and information settings. To build the 21st century skills and competencies in the learners, teachers need to have awareness and knowledge about these skills and apply them in their daily classroom activities. In order to execute the strategies for promoting 21st century skills among learners, a clear perception on the same is highly essential. It is interesting to analyze the perception of the teachers and the missing gaps. This study was conducted to examine the gap between the actual and ideal perception of 21st century skills among secondary school teachers of Kerala. It also examined to what extent their age, teaching experience and subjects have been related to perception level. Data has been collected from secondary school teachers (N=350) through survey method. The result of the study showed that there was gap between actual and ideal perceptions of 21st century skills among the secondary school teachers and also positive correlation between age, teaching experience and the actual perception of 21st century skills.