Correct Option
National Highway 6 (NH 6), under the pre-2010 numbering system, was a significant east-west national highway in India. It commenced at Surat in Gujarat and terminated at Kolkata in West Bengal. This highway traversed through Maharashtra (e.g., Nagpur, Bhandara), Chhattisgarh (e.g., Raipur, Bilaspur), and Odisha (e.g., Sambalpur, Kendujhar), thus fulfilling the condition of passing through all three specified states.
Post-2010 renumbering, segments of the erstwhile NH 6 have been integrated into new national highways, primarily NH 53 and NH 49. These routes are part of the Bharatmala Pariyojana, focusing on enhanced east-west connectivity and the development of industrial corridors. Smart logistics hubs are being established along NH 53 in locations like Nagpur and Raipur under the Gati Shakti National Master Plan.
Incorrect Options
NH 4: This highway connected Mumbai to Chennai, passing through states such as Maharashtra, Karnataka, and Tamil Nadu. It did not traverse Chhattisgarh or Odisha.
NH 5: This route followed the eastern coastal corridor, linking Kolkata to Chennai. It passed through Odisha and Andhra Pradesh but not Chhattisgarh or Maharashtra.
NH 7: As the longest north-south highway under the old system, NH 7 ran from Varanasi to Kanyakumari. Its alignment included states like Uttar Pradesh, Madhya Pradesh, Maharashtra, Andhra Pradesh, Telangana, and Tamil Nadu, but it did not pass through Odisha.