In 1991, The WHO and UNICEF estimated that Persistent Diarrhoea accounted for 10% of all Diarrhoea episodes in the under fives and that i accounts for 30-50% of the about 2.2 million Diarrhoea-related death per year in the under five age group. Dehydration is one of the risk factors for mortality in persistent Diarrhoea among others. Standard ORS solution which is the main mode of management of dehydration, has shown no significant effect on the duration of Diarrhoea or on the volume of stool output in children with acute Diarrhoea but a few studies done on hypo-Osmolar ORS solution in persistent Diarrhoea have shown some beneficial effects.