The correct answer is option 4, NH 9 is not correctly matched with Delhi - Mumbai.
Let`s dissect each option:
Option 1: N H 2 is correctly matched with Delhi - Kolkata. NH 2 is a National Highway in India that connects Delhi in the north with Kolkata in the east.
Option 2: N H 4 is correctly matched with Chennai - Thane (Mumbai). NH 4 is a National Highway in India that connects Chennai in the south with Thane, which is a city near Mumbai.
Option 3: N H 3 is correctly matched with Agra - Mumbai. NH 3 is a National Highway in India that connects Agra with Mumbai.
Option 4 (correct answer): N H 9 is not correctly matched with Delhi - Mumbai. There is no National Highway 9 that connects Delhi with Mumbai. The correct National Highway that connects these two cities is NH 8.
In conclusion, option 4 is the correct answer because NH 9 is not correctly matched with Delhi - Mumbai.