Which one of the following National Waterways is the second longest in length?

Correct option is B

Introduction
India has several designated National Waterways (NWs).
· National Waterways 1 (NW-1) on the Ganga-Bhagirathi-Hooghly River System is the longest (≈ 1620 km).
· National Waterways 4 (NW-4), covering a large system of canals and rivers (Krishna, Godavari, and canals), has a reported total length of approximately 1095 km (sum of its defined segments, including parts of Godavari and Krishna rivers and canals).
· National Waterways 2 (NW-2) on the Brahmaputra River is the third longest (≈ 891 km.
Therefore, the National Waterways 4 is the second longest among the specified options.
Information Booster
· Designation: National Waterways 4 (NW-4).
· River System: The NW-4 covers a long stretch of the Godavari and Krishna rivers, along with the Kakinada, Eluru, and North/South Buckingham Canals.
· Total Length: Its various segments combine for a total length that makes it the second longest in India.
· Longest: National Waterways 1 (≈ 1620 km) is the longest.
· Geographical Spread: It traverses a large area across South India, including Andhra Pradesh, Tamil Nadu, and Puducherry.
Additional Points
· National Waterways 3: On the West Coast Canal in Kerala, one of the shorter waterways (≈ 205 km).
· National Waterways 1: The longest National Waterways (≈ 1620 km).
· National Waterways 2: The third longest National Waterways (≈ 891 km).