If your breasts aren’t producing milk anymore, then you can rebuild your supply with relactation.

To begin, you will need to stimulate your nipples regularly by using a breast pump. That will trigger a hormone called prolactin which develops milk-making formations within your breast. Once milk secretion starts, removing the milk from the breast will encourage your breasts to produce more milk.
To know more you should consider visiting specialists, our page will help with that regard - Gynecologists in Mumbai, let us know if your city is different so as to receive better recommendations which match your requirements.