Yes, you can make a full or partial repayment of the education loan.
The lending member must first revoke the use of his or her CPF savings for your education by completing the online revocation application at
https://www.cpf.gov.sg/RevocationForm. In the form, the member must select the option
"The student is making an early repayment of the education loan while still studying at the Approved Educational Institution".
Once the revocation is processed, the lending member will receive an email notification regarding the application status. If you wish to make repayment prior to graduation, you may check with him or her for the payment details on their
'Activities' page.