Concept:Odd-one-out based on whether the city is a state capital.Explanation:Patna is the capital of Bihar.Raipur is the capital of Chhattisgarh.Hyderabad is the capital of Telangana.Agra is a city in Uttar Pradesh, but its capital is Lucknow.Thus, three cities are state capitals, while Agra is not.Hence, Agra is the odd one out.Answer:D. Agra