Postpartum amenorrhea (PPA), the temporary cessation of menstruation following childbirth, is a critical parameter that reflects physiological recovery post-delivery and provides insights into fertility, maternal, and child health. The return of a woman's menstrual cycle after childbirth is particularly significant in developing countries with high population growth rates. This chapter used all rounds of the National Family Health Survey (NFHS) to identify covariates affecting postpartum amenorrhea in India. Preliminary basic statistics provide a descriptive understanding of these covariates. The primary analytical method employed is the hazard ratio, a statistical tool used in survival analysis to compare the risk of an event (the return of menstruation) occurring in different groups or conditions over time. The analysis reveals several covariates significantly influencing the duration of postpartum amenorrhea. Maternal age, breastfeeding practices, socioeconomic status, and regional differences emerged as key factors. For instance, extended breastfeeding was associated with longer periods of amenorrhea, while higher socioeconomic status correlated with a quicker return of menstrual cycles. Regional disparities highlighted the impact of cultural and healthcare access factors. Understanding the factors influencing postpartum amenorrhea is vital for developing targeted interventions to improve maternal and child health in India. This study highlights the importance of breastfeeding and socioeconomic factors in determining the duration of PPA. Policymakers should consider these findings to support women's health and family planning initiatives, particularly in regions with limited healthcare access.