Which canal has a head regulator capacity of 1133 cumecs (40000 cusecs) and a length of 532 km for which it is considered the world's largest lined irrigation canal?​

Correct option is D

• With 1133 cumecs (40000 cusecs) capacity at the head regulator, and 532 km. length, the Narmada Main Canal would be the largest irrigation canal in the world and is part of the Sardar Sarovar Project in India.
• It is extending from Gujarat to the Rajasthan border. It also extends into Rajasthan to irrigate the Barmer and Jhalore districts.

Incorrect options explanation:

• The Thiruvananthapuram - Shoranur canal is a historic canal in India, from Trivandrum to Shoranur (Palakkad district). It was one of the most arterial transportation mode in erstwhile Travancore princely state. Most of the trade, commerce and freight traffic in Travancore used to happen through this canal.
• A channel named the Kalingarayan channel takes off from the right bank of anicut to a length of 91 Km, which is an earthen channel. This channel serves an ayacut of 15743 Acres. The irrigation channel carries water for a period of 10½months in a year. This channel caters for the needs of nearly 4000 farmers.
• The Cumbarjua Canal is a distributary channel formed by the merger of the Mandovi and Zuari rivers in Goa, India. Its flow has led to the formation of river deltas; the most prominent of them are Ilhas de Goa, Cumbarjua and St Estevam.