The correct answer is Patna, the capital of Bihar. Patna serves as the administrative and legislative headquarters of Bihar, housing the state secretariat, the Legislative Assembly, and the offices of the Governor and Chief Minister. Notably, Patna stands on the southern bank of the river Ganga and traces its history to the ancient city of Pataliputra, capital of the Mauryan and Gupta empires, and it is one of the oldest continuously inhabited cities in the world. The other options given in this Bihar 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. Hyderabad is the capital of Telangana, not Bihar. Bhopal is the capital of Madhya Pradesh, not Bihar. Agartala is the capital of Tripura, not Bihar. None of these cities administers Bihar; only Patna holds that constitutional status. Competitive exams such as SSC CGL, SSC CHSL, State PSC, and Railway exams often feature a Bihar question like this one on Patna, which shows why questions on Indian state capitals are considered high-scoring, since they test direct factual recall rather than complex reasoning. Remember Patna as the capital of Bihar, and clearly distinguish it from the distractor capitals used here — Hyderabad, Bhopal, Agartala — to avoid marking the wrong answer under exam-time pressure.