my baby was born with 3 kg nd she turns 5 month old and her weight at present is 5.6 kg. is this okay ??

A. this is okay babies double the birth weight at completing 4-6 months and three times the birth weight at completing one year start with solid after baby completes six months weight gain foods as potato sweet potato ragi Dalia banana dry fruits as cashew almond in paste and powdered form ghee butter cheese in moderate amount