normal sey 7 month Mai Kitna weight aana chaiye? my baby 7.400 kg ??it's normal?

A. Hello ma’am If the child’s birth weight double by the age of six months or even before it is considered a very healthy weight gain and after that if your child is gaining somewhere around 500 g every month also then that’s good so whatever rate you have mentioned as of now I would say is very good as per the age of your child