Which one of the following National Highways passes through Maharashtra Chhattisgarh and Orissa?

National Highway 6, also known as the Great Eastern Highway, is the correct answer. It runs across India from west to east, starting at Surat in Gujarat and ending at Kolkata in West Bengal. Along its route, it passes through the states of Maharashtra, Chhattisgarh, and Odisha. Specifically, it connects major cities like Nagpur in Maharashtra, Raipur in Chhattisgarh, and Sambalpur in Odisha. The other options are incorrect because NH 4 primarily connects Mumbai to Chennai through Karnataka, NH 5 runs along the east coast from Odisha to Tamil Nadu, and NH 7 is a major north south corridor connecting Varanasi to Kanyakumari. Note that under the new numbering system, most of old NH 6 is now part of NH 53.