Background: The complete immunization is cost effective method to prevent vaccine preventable diseases. In many areas complete immunization is not achieved due to various reasons. The partial or non immunization can be converted in to complete immunization if situation analyzed. Objective: 1) To find out the immunization coverage in 12- 23 months children. 2) Assess the factor associated with partial / non immunization 3) To find out various reasons for partial / non immunization. Methodology: A cross sectional study was conducted in field practicing area of Dept Community Medicine in Three PHC area of Wardha district Maharashtra by house to house survey. Study period: April 2009 to November 2010. A total 1199 children were included in the study Chi square test was applied for statistical analysis. Result: 84.90% children were fully immunized to primary vaccine. The immunization coverage for BCG (96.7%) Vaccine was highest and lower for Measles (84.9%). Most common reason for partial immunization was unaware about the schedule of vaccine (36.5%), out of station (17.7%) and child was ill (14.9%). Parent__ampersandsignrsquo;s education plays significant role in immunization status of children. IEC activities should be in community to avoid non immunization in children.