In psychology, cognitive ability refers to aptitude for carrying out mental processes, such as problem-solving, adaptation, comprehension, reasoning, knowledge acquisition, abstract thought, and making connections. In education, cognitive ability is considered a foundation for learning. Learning Disabilities” refers to a variety of disorders that affect the acquisition, retention, understanding, organization, or use of verbal and/or non-verbal information. These disorders result from impairments in one or more psychological processes related to learning, in combination with otherwise average abilities essential for thinking and reasoning. Learning disabilities are specific, not global impairments, and as such are distinct from intellectual disabilities. Hence a study is conducted in order to find out the cognitive ability among LD and normal adolescents.