Found online while searching for traditional Indian recipes at "Sailu's Kitchen". The recipe seems to use lemons and limes interchangeably, but I just used lemons in the ingredients as it is compared to lemonade. Here is what is stated about this drink: Vitamin C rich, Nimbu Pani aka Lemon water, a refreshing thirst quencher is a common summer drink in Indian homes. Basic recipe involves lime juice, water, sugar and pinch of salt. For a deeper lemony flavor, add the squeezed out lemons to the prepared lemonade and allow to sit for an hour or so. Strain and serve. For variation, add pinch of cardamom OR pinch of chat masala powder OR pinch of jaljira powder to a glass of Nimbu Pani.