Background: CPR is a rescue procedure to be used when the heart and lungs have stopped working. There is a wide variation in the reported incidence and outcome for out of hare due to definition and ascertainment of cardiac arrest as well as differences in treatment after its onset. Hospital cardiac arrest these differences in treatment after its onset.

Several authors described the problem of poor performance in CPR, even when provided by medical professionals. Numerous investigations have reported the problem of poor skills retention after various CPR courses. Studies reporting the need for improvement of resuscitation techniques led to the recent changes in BLS and ALS algorithms.

Method: An evaluative approach with pre-experimental one group pre-test post-test design was used with Purposive sampling technique to select the sample (n=60). A structured knowledge questionnaire on cardiopulmonary resuscitation was used and STP was administered to find its effectiveness. The collected data was analyzed by using descriptive & inferential statistics.

Result: The mean percentage of post-test knowledge score (27.4333%) was higher than the mean percentage of pre-test knowledge score (24.0167%). The calculated value is‘t’-10.560 for knowledge respectively. It shows a significant difference between mean pretest and post-test knowledge scores. There was significant association found between Age & Religion with posttest knowledge score. A significant association between other socio demographic variables and post-test knowledge scores.

Conclusion: The finding of the study shows a deficit in knowledge of ASHA workers before administration of STP. The results indicated that the structured teaching programme was effective in increasing the knowledge of ASHA workers regarding cardio pulmonary resuscitation.