Which one of the following irrigation canals is the most important in terms of area coverage in Haryana ?

The Western Yamuna Canal is the most important and oldest irrigation canal in Haryana in terms of area coverage and historical significance. Originating from the Hathnikund Barrage (formerly Tajewala) on the Yamuna River, it serves a vast command area including the districts of Yamunanagar, Karnal, Panipat, Sonipat, and Rohtak [2]. Historically, it was first renovated by Firoz Shah Tughlaq in 1335 CE and later reconditioned by the British in the 19th century [2]. While the Bhakra Canal is also a significant system serving districts like Hisar and Fatehabad, the Western Yamuna Canal remains the primary lifeline for the state's agricultural heartland [1]. Haryana ranks third in India for canal-irrigated area, with this system being a major contributor to its 1,475 thousand hectares of canal coverage. Other canals like the Gurgaon and Jawaharlal Nehru canals serve more localized regions [1].

Sources

1. [1] https://en.wikipedia.org/wiki/Western_Yamuna_Canal
2. [2] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 9: Agriculture > Area and Sources of Irrigation (area in thousand hectares) > p. 36