Asian Americans are the fastest-growing racial or ethnic group in the United States. And people of Indian descent make up the largest part of America's South Asian diaspora, which includes Bangladeshi, Nepalis, Pakistanis, Sri Lankans as well as people from Bhutan and the Maldives. With such a diverse community, defining what it means to be a South Asian American can be complex. This week, we dive into that complexity, exploring identity, history, political representation and a pressing issue for the South Asian diaspora: caste discrimination.