Multiple choice In which year was 9.7 million hectare-metres of water used for irrigation? 1943 1951 1962 1973 Reveal answer Fill a bubble to check yourself B Correct answer Explanation India's irrigation water use in 1951 was approximately 9.7 million hectare-metres, reflecting early post-independence agricultural development. This grew significantly by 1973 (18.4 million hectare-metres) as major dam and canal projects expanded.