Hi Ramya
Till 9 months very small amount of water nearly 70-80ml per day is what a baby requires as baby is supposed to have minimal 3 servings of milk which has 70%water content and 2-3 servings of semisolids per day .Sippy cups can be offered for consuming water sipwise while they are chewing the food .It is definitely not worrisome .No forceful feeding should be done at this stage.
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https://www.cloudninecare.com/doctors/dr-prabhjot-kaur-dhillon10