Correct Option (d)
None of the pairs are correctly matched.
Incorrect Options
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Pair 1: NH 4 (under the old numbering system) connected Mumbai and Chennai. The given pair incorrectly states Chennai and Hyderabad.
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Pair 2: NH 6 (under the old numbering system) connected Surat and Kolkata. The given pair incorrectly states Mumbai and Kolkata.
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Pair 3: NH 15 (under the old numbering system) extended from Samakhiali (Gujarat) to Pathankot (Punjab). It did not directly connect Ahmedabad and Jodhpur.
Note: The National Highway numbering system was revised in 2010. Under the new system, the old NH 4 became part of NH 48, the old NH 6 became part of NH 53, and the old NH 15 is now partially covered by NH 27 and NH 62.