ICAL package of PC Hardware its Maintenance and Trouble shooting improves level of understanding of learners better than conventional face-to-face teaching method. The analysis of scores of Pre-test Post-test and retention test of experimental and control groups and assessment by the students of experimental group has revealed some facts. The selected groups had more score in post-test than pre-test. It shows that ICAL package developed by the researcher in PCHMTS is effective to enhance their acquisition of knowledge understanding and skill development.