Multiple choice Which among the following National Highway routes is the longest? Agra-Mumbai Chennai-Thane Kolkata-Hajira Pune-Machilipatnam Reveal answer Fill a bubble to check yourself C Correct answer Explanation Length of Agra-Mumbai NH — 1161 km Length of Chennai-Thane NH — 1235 km Length of Kolkata-Hajira NH — 1946 km Length of Pune-Machilipatnam NH — 841 km