The present study was conducted at Lucknow District in Uttar Pradesh. The purpose of this study is to document how being perform in extra-curricular activities can influence development in academics, social skills, and high school completion. In this paper we study the possible influence of extracurricular activities on student’s performance of eighth-and ninth graders. 120 students of age group between 13 to 16 years comprised the sample of the study. Self-made questionnaire for school students were administered. Data was analyzed in term of percentage and t-test analysis. The statistical analysis revealed that all the 6 types of extracurricular activities, viz. Yoga, Horse riding, Sport activities, Dance, Music and Indoor and outdoor activities together showed significant role in some extracurricular activities and Student’s performance of Government and Private School. Students who participate in extracurricular activities generally benefit from the many opportunities afforded them. Benefits of participating in extracurricular activities included having better grades, having higher standardized test scores and higher educational attainment, attending school more regularly, and having higher a higher self-concept. Those who participate in out-of-school activities often have higher grade point averages, a decrease in absenteeism, and an increased connectedness to the school. Finally, we discuss the possible influence of extracurricular activities on student’s performance and whether such participation is advisable.