Children with cleft palate are treated at very early age. The surgical procedure to be carried out depends on your daughter's physical health as well as some medical tests.
The surgery is also done as early as 10 months also. There are some requirement of blood test values to be considered. An Oral and Maxillofacial surgeon trained it Cleft management can be of more help for you.
For surgery related you can contact any SMILE TRAIN Center which is run by WHO. You may find details online. They have some of the best teams and cleft surgeries are done daily.