What is the capital of Tamil Nadu?

The correct answer is Chennai, the capital of Tamil Nadu. Chennai serves as the administrative and legislative headquarters of Tamil Nadu, housing the state secretariat, the Legislative Assembly, and the offices of the Governor and Chief Minister. Notably, Chennai, formerly known as Madras, is a major automobile manufacturing hub often called the 'Detroit of India', and it is also one of India's oldest and busiest ports on the Bay of Bengal. The other options given in this Tamil Nadu question are capitals of different Indian states, and candidates often confuse them because Static GK questions on state capitals are frequently tested together in a single set. Agartala is the capital of Tripura, not Tamil Nadu. Patna is the capital of Bihar, not Tamil Nadu. Jaipur is the capital of Rajasthan, not Tamil Nadu. None of these cities administers Tamil Nadu; only Chennai holds that constitutional status. Competitive exams such as SSC CGL, SSC CHSL, State PSC, and Railway exams often feature a Tamil Nadu question like this one on Chennai, which shows why questions on Indian state capitals are considered high-scoring, since they test direct factual recall rather than complex reasoning. Remember Chennai as the capital of Tamil Nadu, and clearly distinguish it from the distractor capitals used here — Agartala, Patna, Jaipur — to avoid marking the wrong answer under exam-time pressure.