Hi...
My cousin married a msian and have given birth to 3 girls.
The girls were born in Malaysia and are Malaysian by birth.
When my cousin went back to singapore after her confinement, she went to apply for singapore citizenship for the girls. Hence the eligibility to get the baby bonus scheme.
The girls are able to have dual citizenship till they are 18 (If I am not wrong), and after that they will have to choose either one country to be a citizen.
For the youngest child who was born last year, she had to make an appointment to see the officer at ICA. For this, I think it's better to find out more at ICA website. Process time take abt 2-4weeks. Depends also ah.