The Sukanya Samriddhi Scheme was bought in by the government to benefit girl children. This plan became popular because of its various features and benefits. Parents or legal guardians on behalf of their girl children can invest in this scheme for up to two daughters aged below 10, in any post offices or authorized banks. You can now also open SSY for your adopted girl child. The maximum amount that can be deposited under this scheme is Rs 1,50,000 and the minimum is Rs 1,000 in a financial year, which can be made online. This scheme can also be closed prematurely if the girl on whose name the account is opened reaches 18 years.