This study looks at how much water is used for farming in the Hindon River Basin (HRB) in North India, focusing on two major crops: wheat and sugarcane. Using a tool called AquaCrop, the study measured how much rainwater, irrigation water, and polluted water (from fertilisers) were involved in growing these crops between 2005 and 2023. Results show that the total water used per ton of wheat and sugarcane has gone down over time, thanks to better irrigation and higher crop yields. Some areas, like Meerut, used water more efficiently, while others like Muzaffarnagar and Ghaziabad still faced water challenges due to overuse of irrigation and fertilizers. The study also looked at water security, how safe and reliable the water supply is across different parts of the basin during five different years. It found that the upper and lower parts of the basin improved over time, but the middle areas stayed moderately insecure. These results suggest that precision farming, crop diversification, and optimal fertilizer usage are important steps to protect water for the future. The study helps show where efforts are needed most to make agriculture more sustainable in areas with limited water.