premise: National Highway 26 (NH 26), (previously National Highway 43), is a National Highway in India, that connects Raipur in Chhattisgarh and passes through Odisha to connect with Natavalasa in Vizianagaram district of Andhra Pradesh. It connects National Highway 5 and National Highway 6 and transverses the Eastern Ghats.
hypothesis: Odisha and Eastern Ghats are two names for the same thing.
reason: I suggested that Odisha and the Eastern Ghats are the same thing when they aren't.  I think the AI is confused by the many details and the possible similarities between the two lists of adjacent places.