Change of guardian in sukanya samriddhi account is also common and that happens mainly due to deaths. But your case is very strange and a clear case of negligence.
Whatever is the reason like Father name not updated in passbook or sukanya samriddhi yojana in case of death of parents, follow the step by step guide below.
- First of all visit the post office or bank where you have opened the account for your daughter.
- Explain the reason why you want to change or update the guardian name in the passbook.
- Provide all necessary identity proof, relationship proof with the girl.
- After successful verification only your passbook will be updated with the changed name.