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

The highway that traverses Maharashtra, Chhattisgarh and Odisha is National Highway 6 (old numbering). The official listing for the old NH‑6 shows its route running from Hazira (Gujarat) in the west to Kolkata in the east and explicitly records its passage through Maharashtra, Chhattisgarh and Odisha among other states, confirming that NH‑6 connects these three states along its east–west corridor [1]. Therefore, of the given options (NH4, NH5, NH6, NH7), NH6 is the correct choice. This aligns with historical NH numbering where NH6 served as a major west–east trunk linking western ports to eastern India.

Sources

1. [1] https://en.wikipedia.org/wiki/National_Highway_6_(India,_old_numbering)