Q. Which is the largest canal that is used for irrigation in India?
Answer: Indira Gandhi Canal
Notes: The Indira Gandhi Canal is the longest canal in India. It starts from the Harike Barrage at Harike, a few kilometers below the confluence of the Satluj and Beas rivers in the Indian state of Punjab and terminates in irrigation facilities in the Thar Desert in the northwest of Rajasthan state.

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