IR ingestion rate of water [250 ml/day for infants, i.e., 0–12 months, 1.5 l/ day for children (Brindha et al., 2016) and 3 l/day for adults (Planning Commission 2011).
Article Fluoride in weathered rock aquifers of southern India: Manag...
Planning Commission (2011) Report of the working group on rural domestic water and sanitation, Twelfth five year plan—2012–2017, Ministry of Drinking Water and Sanitation, Government of India, p 220
In India, there are no such specific guidelines provided by the Indian Council of Medical Research (ICMR) for daily water intake. So in many research papers and studies conducted in India often rely on U.S. guidelines for water ingestion rates. This practice is common in the absence of localized recommendations. You can follow these links for references.