India has made tremendous progress in reducing MMR by 92 per cent since 2020, but still efforts are required to achieve the new SDG target. Vijayanagara district of Karnataka is a district of Kalyan Karnataka with poor maternal and infant health practices according to National family health survey V report. Hence the present study was conducted with the objective to assess the utilization of post-natal services (PNC) and study the factors influencing utilization of postnatal care services. A community based cross sectional study was conducted in the year 2021-23 in Vijayanagar district on a sample of 810 mothers within 3 months of delivery. Pre-tested questionnaire was used to elicit the information on utilization of postnatal care services and demographic information. SES scale by Agarwala et al. 2005 was used. Data was analyzed using SPSS package Version 26. Results revealed that the overall prevalence of utilization of postnatal care services was 32.46 per cent out of 810 mothers. Mothers between 29 to 32 years had utilized postnatal care services, mothers from middle SES (46.50 %) group, who had ANC attendance, who had knowledge on PNC services (36.30 %) were utilized all the recommended PNC services. Socioeconomic status, age of mother, number of ANC visits and knowledge on postnatal care services were found to be significant factors affecting postnatal care services utilization. The study revealed low level of utilization of postnatal care services among mother (32.46 %). This emphasizes the need to educate pregnant and lactating mothers regarding the importance of PNC services.