Arts is chosen after Class 10, usually alongside Science and Commerce, and focuses on understanding people, society, language, governance and ideas — rather than machines, markets or lab experiments. Students typically study a mix of History, Political Science, Economics, Sociology, Psychology and Geography, along with a language, giving them the widest subject choice of any stream.
It suits students who enjoy reading, writing, debate and understanding "why" things happen the way they do — in society, in the mind, in history or in government. Arts is also the only stream that keeps genuinely different worlds open at once: you can head toward the UPSC civil services, a law degree, a psychology career, journalism, fine arts, or design, often without deciding which one until well into your degree.
A common misconception is that Arts is a "fallback" for students who didn't get into Science or Commerce. In practice, some of India's most selective exams — CLAT for law, UPSC for civil services, NID and NIFT for design — are dominated by students who chose Arts deliberately, because the stream fits the career they were aiming for.