Aim of the study: the aim of study to find out effect of STM on prevention of puerperal sepsis among antenatal mothers residing in selected urban regions of Maharashtra. 1. To assess the knowledge on prevention of puerperal sepsis among antenatal mothers in control and experimental groups before intervention 2. To assess the knowledge on prevention of puerperal sepsis among antenatal mothers in control and experimental group after intervention. 3. To find out the effect of STM between the post-test knowledge scores on the prevention of puerperal sepsis among antenatal mothers in the control group and experimental group.4. To find out the association between post-test knowledge scores and selected demographic variable of antenatal mothers in the experimental group.

Methodology: A quasi-experiment with non-randomized control group research design used for the study. It was conducted over 190 antenatal mothers by using purposive sampling technique.

Results: Assessment was done by using Semi structured questionnaire on Demographic variables and self structured questionnaires on knowledge prevention of puerperal sepsis. Analysis showed that the comparison of knowledge scores before and after intervention among 190 participants. The mean score before the intervention was 8.82 (SD = 1.93, SE = 0.14), and after the intervention, the mean score increased to 16.40 (SD = 7.13, SE = 0.52). A paired t-test was conducted, yielding a t-value of -16.074 with 189 degrees of freedom and a P-value of 0.012, indicating a statistically significant improvement in knowledge after the intervention. This suggests the intervention was effective in enhancing participants' knowledge. These was a significant difference (p0.05) was found between knowledge on prevention of puerperal sepsis and age, qualification, occupation, monthly family income, religion, & type of diet of antenatal mothers. Findings of study revealed that there is association of knowledge with Education, occupation, income & Type of diet and there is no association of knowledge score with any other demographic variable.