Mashed banana can be given to the infants from 5 months onwards. Initially start with half of the banana and gradually increase to one. I started giving half banana to my baby boy from 5 and half months.
Take a small banana and mash it with the help of a fork. Make sure it is finely mixed.
You can add some formula or breast milk as well to it.
Naturally bananas are sweet in taste so they are loved a lot by infants.