my baby is 2 .5 yr old his weight is 11.3 kg and height is 89 cm he is not gaining weight what should we give for weight gain ?

A. dear Mum include variety of food groups give small frequent meals add ghee to every meal good protein from egg , non veg, sprouts, chana sattu, pulses, beans powdered nuts to food, dry fruits , paneer include seasonal fruits and vegetables in daily diet