India has significant social diversity due to its varied geography, cultures, religions, castes, and tribes across different regions. The Constitution recognizes this diversity and enshrines principles like federalism and fundamental rights to promote social harmony. There are three main aspects of social diversity - gender, religion, and castes. Regional diversity in India stems from differences in languages, cultures, ethnic groups and historical backgrounds across its northern, western, southern, eastern, central, and northeastern regions which each have distinct characteristics. Individual diversity refers to the unique differences between individuals influenced by factors like heredity, environment, age, sex, race, and education.