A study was conducted in General Election 2013 Campaign" conducted to determine the influence of interpersonal communication such as (Parents, Siblings, friend, religious leader, celebrities teachers and others identifying which source is more significant in shaping voting behavior of Pakistani youth. For this study, the survey method was used, in which self-reported questionnaire distributed among 1000 respondents in public sectors universities of Punjab and Islamabad to find out results. SPSS was used for data analysis and statistical testing of the variables. The results proved that Parents are the most significant predictor of the voting behavior of youth, but their level of significance gradually decreases when compared to prior studies, because of change in the source of information of youth. This study supports the theoretical framework of interpersonal discussion that emphasized on the importance of interpersonal discussion in shaping behaviors attitudes and emotional reactions of youth.