The word cognition is derived from Latin word “Cognoscene” , meaning ‘to know’ or ‘ to come to know’ The Cognition is defined as ‘the mental action or process of acquiring knowledge and understanding through thought, experience and senses. It implies abilities and methods related to attention, working memory, information processing, problem solving and decision making skills. Playing video games has become extremely popular for recreation among youth in recent years. As of now India is one of the top five mobile gaming markets in the world in terms of number of uses. Video games are indeed complex activities, which requires devising plans, solving problems and think on one’s feet. It is being increasingly believed that videogames can boost the brain and a variety of cognitive abilities- increase attention span and concentration,improve spatial visualization and memory. Aim: To study the impact of playing video games on the cognitive functions of adolescents. Study type: Cross sectional Observational Study. Materials and Methods: Standardized tests to be employed for gathering quantitative data from adolescents fulfilling the inclusion and exclusion criteria in order to assess their cognitive functions. Data Analysis: Statistical techniques, percentages and proportions to be applied for data analysis. Study setting: Residential quarters of Maharashtra.