As part of the efforts in India to get children to take in enough fluids, pupils at a government-run school in Secunderabad are seen drinking great amount of water, November 21, 2019. /VCG Photo

India's "Water Bell Initiative" represents a recent trend for schools to encourage students to stay hydrated and fit. /VCG Photo

Bells are rung three times a day at 10:35 a.m., 12 p.m. and 2 p.m. to signal water drinking sessions. How much water or how long the session should be is yet to be specified. /VCG Photo

Health issues of school children including urinary infections and kidney stones have been brought into the limelight with studies showing they are linked to children forgetting to drink water. /VCG Photo