the Sukanya Samriddhi Account Rules, 2016.Central Rules · 1873
(1) The Account shall be operated by the guardian till the beneficiary Account holder attains the age of ten years or till the beneficiary Account holder attains the age of eighteen years.
(2) The Account shall be operated by the beneficiary Account holder after such Account holder attains the age of eighteen years:
Provided that the Account may be operated by the beneficiary Account holder after such Account holder attains the age of ten years.