kriti is 2.5 month old....and weight is 4.5kg.....is that fine or low?

A. That would depend what was the birth weight of the child as the expectancy somewhere around half a kilo kilogram gain in a month and approximately 250 g gain in 15 days so if you evaluate on that basis your child should be 1 kg and 250 g more than that by completing the time of 2 1/2 months