my 4 months daughter is weighing 4 kg 700 gmsand her height is 53 cm.Her birth weight is 2 kg is this healthy weight gain or not

A. as your child was born with a lesser weight but since your child is gaining a good wait you need not to worry initially baby loses 200 grams to 300 grams per month and then there is a gain of 500 grams to 700 grams per month