Partial withdrawal is allowed under the Public Provident Fund scheme.

You can withdraw up to 50% of the amount in your PPF Account after seven years, beginning with the end of the year you made your initial contribution. You can only make one partial withdrawal each year. To withdraw funds, you must present the PPF passbook and an application to the bank/post office. The sum withdrawn is not subject to income tax.

This is also unchanged in the PPF withdrawal rules for 2021.

The sum would be the lesser of these two, according to PPF Account withdrawal rules: 50% of the account balance at the end of the fiscal year, or 50% of the amount at the end of the fourth fiscal year preceding the year of application.